Crowcon Xgard Type 1 Fixed Gas Detectors. Fixed Point Ex ia Intrinsically Safe Toxic & Oxygen Detectors. Uses an electrochemical sensor to provide 2-wire 4/20mA Output. Operating temperature between -40°C to 50°C & humid spaces. Xgard Type 1 has standard GRP Enclosure – Glass Reinforced Nylon. GRP Polymers are chemically resistant & cost effective for wide use. Optional Accessories include spray deflector, flow adaptor & W/P caps. Comes with M20 (standard), 1/2″ NPT or 3/4″ NPT cable gland optional. Offering Calibration, Sensor & Component Spares, Replacement. Contact us for more information.