Siemens Temperature and Humidity Sensor QFM2160 for relative humidity and temperature FEATURES Operating voltage AC 24 V / DC 13.5...35 V Signal output DC 0...5 V / DC 0...10 V / 4…20 mA for relative humidity Measuring accuracy +-3 % r. h. within the comfort range Range of use -15…+60 °C / 0…95 % r. h. (non-condensing) Download PDF Now