Smart Home compatible flush-mounted room controller suitable for all standard switch ranges. Polar white glossy, 55x55 format without frame. Suitable for controlling central heating, hot water underfloor heating, warm air heating, etc. Installation possible without WiFi connection. Suggestion of the heating system by controller. Integration into all common smart home apps e.g. Google Home, Apple Home, Amazon Alexa possible via Matter WiFi standard. (A Matter-enabled smart speaker is required) Programmable clock function can be set in Smart Home app. Dot-matrix LED in white, briefly on after pressing a button. Unauthorized access protection. Frost protection function. Temperature setting range can be limited. Valve protection. PWM or 2-point control method adjustable. Presence/lowering input. Adaptable to normally open valves. Installation in 55 mm flush-mounted box. Compatible NTC remote sensors with resistance value in kΩ at 25°C: 2, 10, 12, 15, 33 kΩ (F 193720 can be ordered optionally)