Used in ventilation and air conditioning ducts, air conditioning cabinets and dehumidifiers for controlling and/or monitoring humidity in industry and agriculture. Not suitable for aggressive gases. Max. Air velocity 8 m/s, with sensor protection FS-HI 15 m/s. The hysteresis between the stages is adjustable in the range of 3…15 % r.H.. Mechanical range narrowing possible with the adjustment lugs located under the setpoint knob.