RHT-1 Room hygrostat and thermostat

Room hygrostat and thermostat

10..35 °C, 35..100 %rH, power supply 24..230 V AC,
change-over contacts rH 5 (0.2) A, t 10(4)A, switch
127 x 75 x 25 mm, IP30


RHT is a one-stage mechanical room hygro-termostat for wall mounting.

  • HVAC systems – humidity control, exhaust air control, or reheating of residential premises, laboratories, bathrooms, switchboards, and technological rooms
  • Indication of exceeding or dropping below humidity setpoint
  • Indication of exceeding or dropping below temperature setpoint (only RHT)

The measuring element activates the switching contact when relative humidity exceeds the setpoint. The setpoint is set either inside of the housing or with a knob on the front of the device. 

Hygrostats are designed for use in standard environment. They do not require maintenance and can be installed in any position. Make sure that proper air circulation through the apertures is maintained. Fix the device with 2 or 4 screws on a 55 mm flush-mounted box or any flat surface. In the botom there is an aperture for cable installation.


For flush box installation, order inclusive mounting frame ARA1.7E