Flammable gas detectors. Ideal for applications in car parks and safe areas. Catalytic detector. Zero tracking and self-diagnosis. Calibration via plug-in tool. 4-20mA proportional signal output. Optional 3-relay board can be housed in the casing. Power supply 12V...24V DC. Maximum current draw 40mA @ 12V. Operating temperature -10°C...+60°C. IP55 protection rating. Die-cast aluminum housing. Dimensions (L x H x D) 100 x 180 x 65mm. EMC EN 50270:2011, EN 61000. Sensing element: CEI 216-S/2.