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Single or multi-channel In-situ Flue Gas Analyser

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


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


Typical Applications

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      GCEM40 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

      For a full product specification please download the product brochure below.