The HygroFlex1 series is the latest development in inexpensive HVAC transmitters for relative humidity and temperature. The devices are equipped with the tried-and-tested Hygromer® IN-1 sensor and boast unbeatable value for money. The optional ROTRONIC HW4 software enables you to change the scale and calibrate and adjust the transmitter. Features: • Measures relative humidity and temperature • Hygromer® IN-1 humidity sensor • Adjustable at 35 % / 80 %RH • Two freely scalable analog voltage or current outputs • USB service interface • Small footprint • Easy mechanical installation