Siemens QFM3171 Duct sensor for humidity (4...20 mA) and temperature (0...20 mA) for demanding requirements Signal output humidity DC 4...20 mA Signal output temperature DC 4...20 mA Operating voltage DC 13.5…35 V Sensing element, temperature DC 4...20 mA Measuring range, temperature 0…50 °C, -35…35 °C, 0…70 °C Measurement range humidity 0…100 % r.h. Measurement accuracy At 15…35 °C: ±0.6 K, At 40…70 °C: ±0.8 K23 % r.h., 0…100 % r.h.: ±2 % r.h.±2 % r.h. Immersion length 90…206 mm Connection, electrical Screw terminals Type of fixing Flange Degree of protection IP65 Dimensions (W x H x D) 80 x 88 x 39 mm #QFM3171 #Siemens sensors #Siemens Sensors in Vadodara