The programmable clock thermostat with real-time clock (date and time factory pre-set) allows you to set switching times (up to 6 per day) and temperatures according to personal habits. Three program types, 7 days (Monday to Sunday), 5/2 days (Monday to Friday/Saturday to Sunday), and 24 hours (Monday to Sunday), make programming easier. The programmable valve protection prevents the valves or pumps from seizing during the summer months. It can be used for controlling actuators in underfloor and convector heating systems, oil and gas hot water heating systems, circulation pumps, heat pumps, and electric heating devices.