The Rotronic HF3 is a humidity transmitter designed for fixed installation. It measures humidity and temperature, and calculates dew/frost point. It has a range of 0 to 100 %RH and -40 to 140°F (-40 to 60°C).
The HF3 transmitter is available in a space, a duct and a wall mount version. The space mount version is used in offices and rooms where design is important. The duct and wall versions are used for HVAC applications focused on reliability and repeatability. All of these transmitters have a 2 or 2 x 2-wire or a 3/4 wire version power option.
These transmitters can be set to multiple settings and functions and can configured and enabled with the ROTRONIC HW4 software.