These versions are ideal for stable climate control in agriculture or for classic temperature-dependent air supply and ventilation jobs. A rotary knob is integrated in the front of the device to set the setpoint temperature. The illuminated display in the rotary knob indicates the operating condition. A bypass main switch is integrated, providing a facility to bypass the internal device electronics. In the bypass position, the applied line voltage is switched directly to the output.
A room temperature sensor in IP54 is included in the scope of delivery.