Since 1977, Signal Group Ltd has been one of the UK’s leading developers and manufacturers of gas analysers for the professional testing of VOCs, vehicle and engine emissions, impurities in special gases, power plant emissions, catalyst efficiency, and boiler/burner combustion emissions.
The company manufactures state-of-the-art, high-end reference gas analyzers based on flame ionisation detectors (FID), chemiluminescence detectors (CLD), and a variety of non-dispersive infra-red (NDIR) technologies. Signal Group also manufactures sample probes, multipoint samplers, heated lines, sample conditioning equipment, methane cutters, gas dividers, NOx conversion testers and calibration equipment.
IET 36.2 Mar/Apr 2026