Siemens QFA2001 ROOM RH SENSOR, 4-20MA, 2 WIRE, 5%Siemens QFA2001 ROOM RH SENSOR, 4 20MA, 2 WIRE, 5%Room humidity sensor, 4 20mA 2 wire output, + 5% accuracy Additional Information Measurement range humidity095 % r. h. Time constantHumidity: 20 s, Temperature: 510 s Signal output humidityDC 4 20 mA Operating voltage13. 535 VDC Analog outputs4 20mA (2 Wire) Measuring rangeHumidity: 0 to 95% RH Measurement accuracy23 C: 23 % r. h., 095 % r. h.: 5 % r. h. Communication2 Wire loop powered 4 20mA output