Single or Multi-channel In-situ Flue Gas Analyser

The GCEM40 Series analyser is an in-situ device which is low cost, low maintenance and designed both for process control and emissions monitoring.

CEMS Gas Stack Emission Monitors analyser


The GCEM40 series is the latest generation of CODEL’s world renowned in-situ monitors. Our development, knowledge and practical experience have been utilised to produce this advanced technology gas analyser which gives complete flexibility of use on process or emissions applications whilst delivering superb accuracy and repeatability at a very competitive price.



Designed for use primarily on combustion processes, the GCEM40 series measures key pollutants such as CO, NO, NOx, SO2, CH4, CO2 and H2O using an infra-red spectroscopy to ensure that there is no cross sensitivity from other contaminants in the gas stream.

Features & Benefits

Certified Product

The GCEM40 Series has both TUV and MCERT certification which signifies the accuracy and reliability of its measuring capabilities.

Typical Gas Monitoring Applications

Large Combustion Plants
Small Combustion Plants
Cement Plants
Glass Manufacturing
FGD Process
SCR and SNCR Process
Energy From Waste
Renewable Energy
Power Generation
Steel Plant
Metals Processes
Chemical Plant

Product Specification

Certified Ranges 0-500ppm, 0-1000ppm for CO,NO & SO2 to EN15267
Measuring unitsppm | mg/Nm³ | mg/m³ | %
Response Time<200secs
Ambient Temperature-20 to +50°C Certified
-20 to +55°C On request
Power Requirements 24V DC @ 15A
Constructionprobe – 316L stainless steel
Head & DDU – Powder coated aluminium (IP66)
Analogue outputs5 x 4 to 20mA isolated, 500Ω load, fully configurable from keypad.
Logic Outputs 5 x volt-free SPCO contacts, 50V, 1A max, configurable as alarms
1 x volt-free SPCO contact, 50V, 1A max, for data valid
Serial DataRS485 modbus configured


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