The Vaillant SensoComfort VRC 720/3 Thermostat is a programmable 7-day thermostat designed for use with Vaillant boilers. With a sleek black rectangular design, this wall-mounted thermostat features a digital control style and a 3.5-inch display. It is powered by a corded electric source and has three heat stages for optimal comfort. The VRC 720/3 also includes a room sensor for accurate temperature readings, making it a reliable choice for controlling your heating system. Compatible with smart home systems, this thermostat offers convenient control and energy savings.