Digital controller for temperature and humidity intended for low and medium relative humidity applications (10% to 85% with no condensation). It has three outputs: one for temperature control, another for humidity control and a third one for auxiliary purposes, which may operate as a second stage for temperature control, humidity control, alarm, or cyclic timer. Its temperature and humidity sensors are combined in a single bulb, saving space and wiring.

From version 6, the auxiliary output includes the possibility of acting as an evaporator fan, adding a timed, natural, or forced ventilation defrost function to the controller.