The Horstmann CentaurPlus C17-ZW 7 Day Combined Wireless Room Stat & Timeswitch VATR is a programmable thermostat designed for central heating radiators. With a 7-day programmable schedule, this wall-mounted thermostat offers dial, push button, and digital control options, powered by corded electric and batteries. The heat-off system switching feature allows for efficient energy usage, and the white colour adds a sleek design to any room. Ideal for home heating, cooling, and air systems, this thermostat by Horstmann provides precise temperature control and convenience.