All 40/40 Series detectors offer enhanced reliability and durability with a massive 5 year warranty. All are fitted with heated window to withstand the harshest of conditions, HART output to offer quality information during installation or maintenance. Most have an enhanced detection distance and larger field of view than before.

All are Hazardous Area approved (FM/ATEX/IECEx/CSA and more) for location in zone I areas and 3rd party Performance approved (EN54-10, FM, DNV).

The 40/40 model range includes IR3, combined UV/IR, single UV types which are available now and single IR type as well as a new Multi IR Detector, which provides combined hydrocarbon and hydrogen flame detection, later in the year. 

    40/40R Flame Detector

    The 40/40R single IR Flame Detector detects hydrocarbon-based fuel and gas fires using advanced flame analysis tools. The detector provides early warning of flaming fires working at 4.4 um for maximum sensitivity, and immunity to false alarms... Read More


    40/40U-UB Flame Detector

    The 40/40 UV Flame Detector detects hydrocarbon-based fuel and gas fires, invisible hydrogen flames, and fires from hydrides, ammonia, silane and other organics. The new design is the most durable and weather resistant UV flame... Read More


    40/40L-LB; L4-L4B

    Spectrex offers two versions of the 40/40 Series UV/IR Flame Detectors: Model 40/40L (& LB) provides a combination of UV and IR sensors, where the IR sensor operates at a wavelength of 2.5-3.0 µm, and can detect... Read More


    40/40M Flame Detector

    The 40/40M Multi IR Flame Detector is specifically designed for detection of hydrocarbon and hydrogen flames. It detects hydrocarbon-based fuel and gas fires at long distances with the highest immunity to false alarms. The 40/40M IR3 can... Read More


    40/40I Flame Detector

    The 40/40I Triple IR (IR3) Flame Detector detects fuel and gas fires at long distances with the highest immunity to false alarms. The 40/40I IR3 can detect a 1ft2 (0.1m2) gasoline pan fire at 215 ft (65m) in less than 5 seconds.... Read More