The Homematic IP wall thermostat with switch output is part of the Homematic IP smart home system and controls 24V underfloor heating actuators silently via a triac output. The wall thermostat allows for easy upgrading of a conventional underfloor heating control to an intelligent room temperature regulation by replacing the existing bimetallic controller. This enhances living comfort and actively contributes to energy savings. The smart solution offers individual temperature profiles with up to 13 changes per day across 3 or 6 adjustable heating profiles (3 for heating/3 for cooling). The desired temperature can be conveniently selected in 0.5°C increments using the adjustment dial on the wall thermostat. The large illuminated display shows the set and actual temperature as well as the humidity. Additionally, all values can also be read and adjusted via the Homematic IP app. The wall thermostat is mounted in standard flush-mounted boxes, making it significantly easier to replace existing wall thermostats. The dimensions of the wall thermostat even allow for integration into multi-frame systems from leading manufacturers. If the thermostat is to be used without the Homematic IP Access Point or without the Homematic Central CCU2/CCU3, the desired settings can be selected directly on the thermostat without smart home connectivity.