RFF-U Room humidity sensor

Room humidity sensor

capacitive element, 40..60% rH: ±3%, 10..90% rH: ±5%
Output 0..10V, power supply 24 V AC/DC
Wall mounting, dimensions 79 x 81 x 26 mm


The RFF is a relative humidity sensor for universal use in the HVAC sector.

  • HVAC systems – room humidity measuring

The sensor measures relative humidity of air and other non-aggressive gases. It is used in refrigeration, air conditioning and clean room technology as well as in residential and public buildings. 

The sensors are intended for operating in a normal and chemically non-aggressive environment. They do not need any servicing or maintenance and can be mounted in any position. For humidity, capacitive sensing element is used. 

The sensors are mounted with 2 or 4 screws on a flush-mounted junction box with 55 mm in diameter.

* output 4..20 mA RFF-I
* display