{"id":861,"date":"2021-03-16T09:50:11","date_gmt":"2021-03-16T09:50:11","guid":{"rendered":"http:\/\/new.codel.co.uk\/?page_id=861"},"modified":"2025-02-03T11:36:57","modified_gmt":"2025-02-03T11:36:57","slug":"air-quality","status":"publish","type":"page","link":"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/","title":{"rendered":"Thi\u1ebft B\u1ecb Quan Tr\u1eafc Ch\u1ea5t L\u01b0\u1ee3ng Kh\u00f4ng Kh\u00ed"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"861\" class=\"elementor elementor-861\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5af71ec9 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5af71ec9\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2f83b407\" data-id=\"2f83b407\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7788b0b2 elementor-widget elementor-widget-heading\" data-id=\"7788b0b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc Ch\u1ea5t L\u01b0\u1ee3ng Kh\u00f4ng Kh\u00ed Trong H\u1ea7m<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-48b4f8be elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"48b4f8be\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5147ca21\" data-id=\"5147ca21\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-681137ae elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"681137ae\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-58a51dac\" data-id=\"58a51dac\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-215430e6 elementor-widget elementor-widget-shortcode\" data-id=\"215430e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"> <span><span><a href=\"https:\/\/www.codel.co.uk\/vi\/\"><i class=\"fa fa-home\"><\/i> Trang Ch\u1ee7<\/a><\/span><\/span><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1c7b1c0d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1c7b1c0d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-77200748\" data-id=\"77200748\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-56a766b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"56a766b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-1e65609\" data-id=\"1e65609\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4ed39a72 elementor-widget elementor-widget-heading\" data-id=\"4ed39a72\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"\/vi\/products\/tunnel-sensors\/air-quality\/co-no-visibility\/\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc CO, NO V\u00e0 T\u1ea7m Nh\u00ecn TunnelTech 201<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c46388f elementor-widget elementor-widget-image\" data-id=\"2c46388f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"\/vi\/products\/tunnel-sensors\/air-quality\/co-no-visibility\/\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png\" class=\"attachment-medium size-medium wp-image-684\" alt=\"\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1024x683.png 1024w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-768x512.png 768w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1536x1024.png 1536w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-16x12.png 16w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled.png 1761w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d5fa474 elementor-widget elementor-widget-text-editor\" data-id=\"6d5fa474\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>M\u00e1y ph\u00e2n t\u00edch TunnelTech 201 \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt h\u1ed3ng ngo\u1ea1i \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh n\u1ed3ng \u0111\u1ed9 CO v\u00e0 NO, \u0111\u1ed3ng th\u1eddi d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p suy gi\u1ea3m quang h\u1ecdc (optical attenuation) \u0111\u1ec3 quan tr\u1eafc m\u1ee9c \u0111\u1ed9 t\u1ea7m nh\u00ecn.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ae9d520 elementor-widget elementor-widget-text-editor\" data-id=\"ae9d520\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>CO, NO V\u00e0 T\u1ea7m Nh\u00ecn<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b25ce0 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"6b25ce0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"\/vi\/products\/tunnel-sensors\/air-quality\/co-no-visibility\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-c6b51b1\" data-id=\"c6b51b1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9fac2f3 elementor-widget elementor-widget-heading\" data-id=\"9fac2f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-visibility\/\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc CO V\u00e0 T\u1ea7m Nh\u00ecn TunnelTech 202<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79841ec6 elementor-widget elementor-widget-image\" data-id=\"79841ec6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-visibility\/\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png\" class=\"attachment-medium size-medium wp-image-684\" alt=\"\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1024x683.png 1024w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-768x512.png 768w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1536x1024.png 1536w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-16x12.png 16w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled.png 1761w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5b05ae50 elementor-widget elementor-widget-text-editor\" data-id=\"5b05ae50\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>M\u00e1y ph\u00e2n t\u00edch TunnelTech 202 \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt h\u1ed3ng ngo\u1ea1i \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh n\u1ed3ng \u0111\u1ed9 CO, \u0111\u1ed3ng th\u1eddi d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p suy gi\u1ea3m quang h\u1ecdc (optical attenuation) \u0111\u1ec3 quan tr\u1eafc m\u1ee9c \u0111\u1ed9 t\u1ea7m nh\u00ecn.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b0b99e elementor-widget elementor-widget-text-editor\" data-id=\"6b0b99e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>CO V\u00e0 T\u1ea7m Nh\u00ecn<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-799f6736 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"799f6736\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-visibility\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-3b44fd5\" data-id=\"3b44fd5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5ae152c elementor-widget elementor-widget-heading\" data-id=\"5ae152c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-no-monitor\/\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc CO, NO TunnelTech 203<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-84f5742 elementor-widget elementor-widget-image\" data-id=\"84f5742\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-no-monitor\/\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png\" class=\"attachment-medium size-medium wp-image-684\" alt=\"\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1024x683.png 1024w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-768x512.png 768w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1536x1024.png 1536w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-16x12.png 16w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled.png 1761w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d2301c6 elementor-widget elementor-widget-text-editor\" data-id=\"d2301c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Thi\u1ebft b\u1ecb quan tr\u1eafc ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed TunnelTech 203 li\u00ean t\u1ee5c quan tr\u1eafc c\u00e1c th\u00f4ng s\u1ed1 CO v\u00e0 NO, \u0111\u00f3ng vai tr\u00f2 kh\u00f4ng th\u1ec3 thi\u1ebfu trong m\u1ecdi h\u1ec7 th\u1ed1ng an to\u00e0n h\u1ea7m \u0111\u01b0\u1eddng b\u1ed9 hay \u0111\u01b0\u1eddng s\u1eaft.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-80c4ce0 elementor-widget elementor-widget-text-editor\" data-id=\"80c4ce0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>CO V\u00e0 NO<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b8eef26 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"b8eef26\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/co-no-monitor\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-0bcf39a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0bcf39a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-2e2583e\" data-id=\"2e2583e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8c7ad97 elementor-widget elementor-widget-heading\" data-id=\"8c7ad97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"\/vi\/products\/tunnel-sensors\/air-quality\/visibility\/\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc Ch\u1ec9 \u0110o T\u1ea7m Nh\u00ecn TunnelTech 204<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7dbdae2 elementor-widget elementor-widget-image\" data-id=\"7dbdae2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"\/vi\/products\/tunnel-sensors\/air-quality\/visibility\/\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png\" class=\"attachment-medium size-medium wp-image-684\" alt=\"\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-300x200.png 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1024x683.png 1024w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-768x512.png 768w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-1536x1024.png 1536w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled-16x12.png 16w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/TC3_Head_2_Scaled.png 1761w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc4274c elementor-widget elementor-widget-text-editor\" data-id=\"cc4274c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>M\u00e1y ph\u00e2n t\u00edch TunnelTech 204 \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 suy gi\u1ea3m quang h\u1ecdc (optical attenuation) \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng \u0111\u1ec3 quan tr\u1eafc m\u1ee9c \u0111\u1ed9 t\u1ea7m nh\u00ecn.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b4e1a80 elementor-widget elementor-widget-text-editor\" data-id=\"b4e1a80\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>T\u1ea7m Nh\u00ecn<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-742b806 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"742b806\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"\/vi\/products\/tunnel-sensors\/air-quality\/visibility\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-070dae2\" data-id=\"070dae2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0e9cd75 elementor-widget elementor-widget-heading\" data-id=\"0e9cd75\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"\/vi\/products\/tunnel-sensors\/electrochemical-cell\/co-no-no2-monitor\/\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc Ch\u1ea5t L\u01b0\u1ee3ng Kh\u00f4ng Kh\u00ed CO, NO V\u00e0 NO2 TunnelTech 500<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-69b186c elementor-widget elementor-widget-image\" data-id=\"69b186c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"\/vi\/products\/tunnel-sensors\/electrochemical-cell\/co-no-no2-monitor\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/elementor\/thumbs\/tt500_bracket-2_Scaled-p42flyz823syovalb7oqj4ojd2cdg50vs8fpyspp8g.jpg\" title=\"tt500_bracket-2_Scaled\" alt=\"Road Tunnel multi gas emission monitor analyser using Electrochemical Cell\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e640020 elementor-widget elementor-widget-text-editor\" data-id=\"e640020\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>M\u00e1y ph\u00e2n t\u00edch TunnelTech 501 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 t\u1ebf b\u00e0o \u0111i\u1ec7n h\u00f3a (electrochemical cell) \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh n\u1ed3ng \u0111\u1ed9 CO, NO v\u00e0 NO2.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-622bcb6 elementor-widget elementor-widget-text-editor\" data-id=\"622bcb6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>CO, NO V\u00e0 NO2<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d47581 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"8d47581\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"\/vi\/products\/tunnel-sensors\/electrochemical-cell\/co-no-no2-monitor\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-5bb38c0\" data-id=\"5bb38c0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1b7fedf elementor-widget elementor-widget-heading\" data-id=\"1b7fedf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"\/vi\/products\/tunnel-sensors\/electrochemical-cell\/co-no-no2-vis-monitor\/\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc Ch\u1ea5t L\u01b0\u1ee3ng Kh\u00f4ng Kh\u00ed CO, NO, NO2 V\u00e0 T\u1ea7m Nh\u00ecn TunnelTech 700<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da187d3 elementor-widget elementor-widget-image\" data-id=\"da187d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"\/vi\/products\/tunnel-sensors\/electrochemical-cell\/co-no-no2-vis-monitor\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/elementor\/thumbs\/aaa_Scaled-p42g8oqt7ywf9maqo165sebk6adpgt7cwo05hj16v4.png\" title=\"aaa_Scaled\" alt=\"Road Tunnel multi gas and visibility emission monitoring analyser using Electrochemical Cell\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3fab75f elementor-widget elementor-widget-text-editor\" data-id=\"3fab75f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>M\u00e1y ph\u00e2n t\u00edch TunnelTech 701 \u0111o n\u1ed3ng \u0111\u1ed9 CO, NO v\u00e0 NO2, \u0111\u1ed3ng th\u1eddi d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p suy gi\u1ea3m quang h\u1ecdc (optical attenuation) \u0111\u1ec3 quan tr\u1eafc m\u1ee9c \u0111\u1ed9 T\u1ea7m Nh\u00ecn.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f471aa2 elementor-widget elementor-widget-text-editor\" data-id=\"f471aa2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>CO, NO V\u00e0 NO2<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6234d95 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"6234d95\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"\/vi\/products\/tunnel-sensors\/electrochemical-cell\/co-no-no2-vis-monitor\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-7617371 elementor-widget elementor-widget-spacer\" data-id=\"7617371\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5e11733 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5e11733\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7478856\" data-id=\"7478856\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-cc53ddc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cc53ddc\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-9f73a04\" data-id=\"9f73a04\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-007aecd elementor-widget elementor-widget-heading\" data-id=\"007aecd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">S\u1ea3n Ph\u1ea9m Li\u00ean Quan<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-34a810f1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"34a810f1\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-552751fc\" data-id=\"552751fc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-32e96404 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"32e96404\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-609261a5\" data-id=\"609261a5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4bd211ca elementor-widget elementor-widget-image\" data-id=\"4bd211ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/electrochemical-cell\/co-no-no2-vis-monitor\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"253\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/aaa_Scaled-300x253.png\" class=\"attachment-medium size-medium wp-image-753\" alt=\"Road Tunnel multi gas and visibility emission monitoring analyser using Electrochemical Cell\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/aaa_Scaled-300x253.png 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/aaa_Scaled-14x12.png 14w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2021\/03\/aaa_Scaled.png 689w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-2b5d2574\" data-id=\"2b5d2574\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-304e8973 elementor-widget elementor-widget-heading\" data-id=\"304e8973\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/electrochemical-cell\/co-no-no2-vis-monitor\/\">Thi\u1ebft B\u1ecb Quan Tr\u1eafc Ch\u1ea5t L\u01b0\u1ee3ng Kh\u00f4ng Kh\u00ed CO, NO V\u00e0 NO2 \u0110i\u1ec7n H\u00f3a (Electrochemical) TunnelTech 700<\/a><\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-34b7f51f elementor-widget elementor-widget-button\" data-id=\"34b7f51f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/vi\/products\/tunnel-sensors\/electrochemical-cell\/co-no-no2-vis-monitor\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3320168d\" data-id=\"3320168d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-2a7db73d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2a7db73d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-55fcaa69\" data-id=\"55fcaa69\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-27a90012 elementor-widget elementor-widget-image\" data-id=\"27a90012\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/flow-monitors\/air-flow\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"240\" src=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2024\/05\/TT305-1-No-bg-copy-e1716277222607-300x240.png\" class=\"attachment-medium size-medium wp-image-9073\" alt=\"\" srcset=\"https:\/\/www.codel.co.uk\/wp-content\/uploads\/2024\/05\/TT305-1-No-bg-copy-e1716277222607-300x240.png 300w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2024\/05\/TT305-1-No-bg-copy-e1716277222607-1024x820.png 1024w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2024\/05\/TT305-1-No-bg-copy-e1716277222607-768x615.png 768w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2024\/05\/TT305-1-No-bg-copy-e1716277222607-15x12.png 15w, https:\/\/www.codel.co.uk\/wp-content\/uploads\/2024\/05\/TT305-1-No-bg-copy-e1716277222607.png 1414w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-75f3748c\" data-id=\"75f3748c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3e570bb6 elementor-widget elementor-widget-heading\" data-id=\"3e570bb6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/flow-monitors\/air-flow\/\">Thi\u1ebft B\u1ecb \u0110o L\u01b0u L\u01b0\u1ee3ng Kh\u00f4ng Kh\u00ed TunnelTech 305<\/a><\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f6ccad9 elementor-widget elementor-widget-button\" data-id=\"3f6ccad9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/vi\/products\/tunnel-sensors\/flow-monitors\/air-flow\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Xem S\u1ea3n Ph\u1ea9m<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-14e944b2 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"14e944b2\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7b6a6a80\" data-id=\"7b6a6a80\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6d3fdf49 elementor-widget elementor-widget-heading\" data-id=\"6d3fdf49\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u0110\u1eb7t C\u00e2u H\u1ecfi<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4899f8e5 elementor-widget elementor-widget-text-editor\" data-id=\"4899f8e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 b\u1ea5t k\u1ef3 s\u1ea3n ph\u1ea9m n\u00e0o c\u1ee7a ch\u00fang t\u00f4i, b\u1ea1n vui l\u00f2ng \u0111i\u1ec1n v\u00e0o m\u1eabu li\u00ean h\u1ec7, v\u00e0 nh\u00e2n vi\u00ean c\u1ee7a ch\u00fang t\u00f4i s\u1ebd ph\u1ea3n h\u1ed3i trong th\u1eddi gian s\u1edbm nh\u1ea5t.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e79e408 elementor-widget elementor-widget-text-editor\" data-id=\"5e79e408\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 g\u1ecdi t\u1edbi s\u1ed1: <strong>+44(0)1629 814351<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-310a1b01\" data-id=\"310a1b01\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6024077 eael-contact-form-7-button-align-left eael-contact-form-7-button-custom elementor-widget elementor-widget-eael-contact-form-7\" data-id=\"6024077\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"eael-contact-form-7.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"eael-contact-form-7-wrapper\">\n                <div class=\"eael-contact-form eael-contact-form-7 eael-contact-form-6024077 placeholder-show eael-contact-form-align-center\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f4567-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"4567\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/vi\/wp-json\/wp\/v2\/pages\/861#wpcf7-f4567-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/vi\/wp-json\/wp\/v2\/pages\/861#wpcf7-f4567-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"4567\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.2.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f4567-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/><input type=\"hidden\" name=\"_wpcf7dtx_version\" value=\"5.0.7\" \/><input type=\"hidden\" name=\"_wpcf7_recaptcha_response\" value=\"\" \/>\n<\/fieldset>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"H\u1ecd T\u00ean\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Email\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-company\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"T\u00ean C\u00f4ng Ty\" value=\"\" type=\"text\" name=\"your-company\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-telephone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-text wpcf7-validates-as-tel\" aria-invalid=\"false\" placeholder=\"\u0110i\u1ec7n Tho\u1ea1i\" value=\"\" type=\"tel\" name=\"your-telephone\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap country_auto country_origin\" data-name=\"country_origin\"><select class=\"wpcf7-form-control wpcf7-country_auto wpcf7-validates-as-required wpcf7-select country_auto\" aria-required=\"true\" aria-invalid=\"false\" name=\"country_origin\" data-placeholder=\"Select Country\" ><option value=\"0\" data-id=\"0\">Select Country<\/option><option value=\"Afghanistan\" data-id=\"1\">Afghanistan<\/option><option value=\"Aland Islands\" data-id=\"2\">Aland Islands<\/option><option value=\"Albania\" data-id=\"3\">Albania<\/option><option value=\"Algeria\" data-id=\"4\">Algeria<\/option><option value=\"American Samoa\" data-id=\"5\">American Samoa<\/option><option value=\"Andorra\" data-id=\"6\">Andorra<\/option><option value=\"Angola\" data-id=\"7\">Angola<\/option><option value=\"Anguilla\" data-id=\"8\">Anguilla<\/option><option value=\"Antarctica\" data-id=\"9\">Antarctica<\/option><option value=\"Antigua And Barbuda\" data-id=\"10\">Antigua And Barbuda<\/option><option value=\"Argentina\" data-id=\"11\">Argentina<\/option><option value=\"Armenia\" data-id=\"12\">Armenia<\/option><option value=\"Aruba\" data-id=\"13\">Aruba<\/option><option value=\"Australia\" data-id=\"14\">\u00dac<\/option><option value=\"Austria\" data-id=\"15\">\u00c1o<\/option><option value=\"Azerbaijan\" data-id=\"16\">Azerbaijan<\/option><option value=\"Bahamas The\" data-id=\"17\">Bahamas The<\/option><option value=\"Bahrain\" data-id=\"18\">Bahrain<\/option><option value=\"Bangladesh\" data-id=\"19\">Bangladesh<\/option><option value=\"Barbados\" data-id=\"20\">Barbados<\/option><option value=\"Belarus\" data-id=\"21\">Belarus<\/option><option value=\"Belgium\" data-id=\"22\">Belgium<\/option><option value=\"Belize\" data-id=\"23\">Belize<\/option><option value=\"Benin\" data-id=\"24\">Benin<\/option><option value=\"Bermuda\" data-id=\"25\">Bermuda<\/option><option value=\"Bhutan\" data-id=\"26\">Bhutan<\/option><option value=\"Bolivia\" data-id=\"27\">Bolivia<\/option><option value=\"Bosnia and Herzegovina\" data-id=\"28\">Bosnia and Herzegovina<\/option><option value=\"Botswana\" data-id=\"29\">Botswana<\/option><option value=\"Bouvet Island\" data-id=\"30\">Bouvet Island<\/option><option value=\"Brazil\" data-id=\"31\">Bra-xin<\/option><option value=\"British Indian Ocean Territory\" data-id=\"32\">British Indian Ocean Territory<\/option><option value=\"Brunei\" data-id=\"33\">Brunei<\/option><option value=\"Bulgaria\" data-id=\"34\">Bulgaria<\/option><option value=\"Burkina Faso\" data-id=\"35\">Burkina Faso<\/option><option value=\"Burundi\" data-id=\"36\">Burundi<\/option><option value=\"Cambodia\" data-id=\"37\">Cambodia<\/option><option value=\"Cameroon\" data-id=\"38\">Cameroon<\/option><option value=\"Canada\" data-id=\"39\">Canada<\/option><option value=\"Cape Verde\" data-id=\"40\">Cape Verde<\/option><option value=\"Cayman Islands\" data-id=\"41\">Cayman Islands<\/option><option value=\"Central African Republic\" data-id=\"42\">Central African Republic<\/option><option value=\"Chad\" data-id=\"43\">Chad<\/option><option value=\"Chile\" data-id=\"44\">Chi-l\u00ea<\/option><option value=\"China\" data-id=\"45\">China<\/option><option value=\"Christmas Island\" data-id=\"46\">Christmas Island<\/option><option value=\"Cocos (Keeling) Islands\" data-id=\"47\">Cocos (Keeling) Islands<\/option><option value=\"Colombia\" data-id=\"48\">C\u00f4-l\u00f4m-bi-a)<\/option><option value=\"Comoros\" data-id=\"49\">Comoros<\/option><option value=\"Congo\" data-id=\"50\">Congo<\/option><option value=\"Congo The Democratic Republic Of The\" data-id=\"51\">Congo The Democratic Republic Of The<\/option><option value=\"Cook Islands\" data-id=\"52\">Cook Islands<\/option><option value=\"Costa Rica\" data-id=\"53\">Costa Rica<\/option><option value=\"Cote D&#039;Ivoire (Ivory Coast)\" data-id=\"54\">Cote D&#039;Ivoire (Ivory Coast)<\/option><option value=\"Croatia (Hrvatska)\" data-id=\"55\">Croatia (Hrvatska)<\/option><option value=\"Cuba\" data-id=\"56\">Cuba<\/option><option value=\"Cyprus\" data-id=\"57\">S\u00edp<\/option><option value=\"Czech Republic\" data-id=\"58\">Czech Republic<\/option><option value=\"Denmark\" data-id=\"59\">Denmark<\/option><option value=\"Djibouti\" data-id=\"60\">Djibouti<\/option><option value=\"Dominica\" data-id=\"61\">Dominica<\/option><option value=\"Dominican Republic\" data-id=\"62\">Dominican Republic<\/option><option value=\"East Timor\" data-id=\"63\">East Timor<\/option><option value=\"Ecuador\" data-id=\"64\">Ecuador<\/option><option value=\"Egypt\" data-id=\"65\">Ai C\u1eadp<\/option><option value=\"El Salvador\" data-id=\"66\">El Salvador<\/option><option value=\"Equatorial Guinea\" data-id=\"67\">Equatorial Guinea<\/option><option value=\"Eritrea\" data-id=\"68\">Eritrea<\/option><option value=\"Estonia\" data-id=\"69\">Estonia<\/option><option value=\"Ethiopia\" data-id=\"70\">Ethiopia<\/option><option value=\"Falkland Islands\" data-id=\"71\">Falkland Islands<\/option><option value=\"Faroe Islands\" data-id=\"72\">Faroe Islands<\/option><option value=\"Fiji Islands\" data-id=\"73\">Fiji Islands<\/option><option value=\"Finland\" data-id=\"74\">Ph\u1ea7n Lan<\/option><option value=\"France\" data-id=\"75\">Ph\u00e1p<\/option><option value=\"French Guiana\" data-id=\"76\">French Guiana<\/option><option value=\"French Polynesia\" data-id=\"77\">French Polynesia<\/option><option value=\"French Southern Territories\" data-id=\"78\">French Southern Territories<\/option><option value=\"Gabon\" data-id=\"79\">Gabon<\/option><option value=\"Gambia The\" data-id=\"80\">Gambia The<\/option><option value=\"Georgia\" data-id=\"81\">Georgia<\/option><option value=\"Germany\" data-id=\"82\">\u0110\u1ee9c<\/option><option value=\"Ghana\" data-id=\"83\">Ghana<\/option><option value=\"Gibraltar\" data-id=\"84\">Gibraltar<\/option><option value=\"Greece\" data-id=\"85\">Hy L\u1ea1p<\/option><option value=\"Greenland\" data-id=\"86\">Greenland<\/option><option value=\"Grenada\" data-id=\"87\">Grenada<\/option><option value=\"Guadeloupe\" data-id=\"88\">Guadeloupe<\/option><option value=\"Guam\" data-id=\"89\">Guam<\/option><option value=\"Guatemala\" data-id=\"90\">Guatemala<\/option><option value=\"Guernsey and Alderney\" data-id=\"91\">Guernsey and Alderney<\/option><option value=\"Guinea\" data-id=\"92\">Guinea<\/option><option value=\"Guinea-Bissau\" data-id=\"93\">Guinea-Bissau<\/option><option value=\"Guyana\" data-id=\"94\">Guyana<\/option><option value=\"Haiti\" data-id=\"95\">Haiti<\/option><option value=\"Heard and McDonald Islands\" data-id=\"96\">Heard and McDonald Islands<\/option><option value=\"Honduras\" data-id=\"97\">Honduras<\/option><option value=\"Hong Kong S.A.R.\" data-id=\"98\">Hong Kong S.A.R.<\/option><option value=\"Hungary\" data-id=\"99\">Hungary<\/option><option value=\"Iceland\" data-id=\"100\">Iceland<\/option><option value=\"India\" data-id=\"101\">India<\/option><option value=\"Indonesia\" data-id=\"102\">Indonesia<\/option><option value=\"Iran\" data-id=\"103\">Iran<\/option><option value=\"Iraq\" data-id=\"104\">Iraq<\/option><option value=\"Ireland\" data-id=\"105\">Ai-len<\/option><option value=\"Israel\" data-id=\"106\">Israel<\/option><option value=\"Italy\" data-id=\"107\">\u00dd<\/option><option value=\"Jamaica\" data-id=\"108\">Jamaica<\/option><option value=\"Japan\" data-id=\"109\">Japan<\/option><option value=\"Jersey\" data-id=\"110\">Jersey<\/option><option value=\"Jordan\" data-id=\"111\">Jordan<\/option><option value=\"Kazakhstan\" data-id=\"112\">Kazakhstan<\/option><option value=\"Kenya\" data-id=\"113\">Kenya<\/option><option value=\"Kiribati\" data-id=\"114\">Kiribati<\/option><option value=\"Korea North\" data-id=\"115\">Korea North<\/option><option value=\"Korea South\" data-id=\"116\">Korea South<\/option><option value=\"Kuwait\" data-id=\"117\">Kuwait<\/option><option value=\"Kyrgyzstan\" data-id=\"118\">Kyrgyzstan<\/option><option value=\"Laos\" data-id=\"119\">Laos<\/option><option value=\"Latvia\" data-id=\"120\">Latvia<\/option><option value=\"Lebanon\" data-id=\"121\">Lebanon<\/option><option value=\"Lesotho\" data-id=\"122\">Lesotho<\/option><option value=\"Liberia\" data-id=\"123\">Liberia<\/option><option value=\"Libya\" data-id=\"124\">Libya<\/option><option value=\"Liechtenstein\" data-id=\"125\">Liechtenstein<\/option><option value=\"Lithuania\" 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value=\"vi\"\/><\/form>\n<\/div>\n<\/div>\n            <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Tunnel Air Quality Monitors TunnelTech 201 CO, NO and Visibility Monitor The TunnelTech 201 analyser uses well proven infra-red techniques to determine CO and NO concentrations and optical attenuation to monitor visibility levels.\u00a0 CO, NO &amp; Visibility View Product TunnelTech 202 CO and Visibility Monitor The TunnelTech 202 analyser uses well proven infra-red techniques to &#8230; <a title=\"Thi\u1ebft B\u1ecb Quan Tr\u1eafc Ch\u1ea5t L\u01b0\u1ee3ng Kh\u00f4ng Kh\u00ed\" class=\"read-more\" href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/\" aria-label=\"\u0110\u1ecdc th\u00eam v\u1ec1 Air Quality Monitors\">\u0110\u1ecdc ti\u1ebfp<\/a><\/p>","protected":false},"author":1,"featured_media":0,"parent":723,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-861","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Air Quality Monitors - CODEL International LTD<\/title>\n<meta name=\"description\" content=\"CODEL&#039;s range of CO, NO and Visibility air quality monitors are designed for road and rail tunnel applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.codel.co.uk\/vi\/products\/tunnel-sensors\/air-quality\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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