Infrared detector 0/100%. Operating pressure 80Kpa...110 KPa, maximum air speed <6m/s. 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. Supply voltage 12V...24V DC. Maximum current draw 130mA @ 12V. Operating temperature -20°C...+50°C. IP55 protection rating. Die-cast aluminum housing. Dimensions (L x H x D) 106 x 170 x 65mm. EMC EN 50270:2011, EN 61000. Approval certificates: ATEX Exn II3G e SIL2 HW e SIL3 SW.