The Horstmann secure 425 Coronet Single Circuit Programmer Timer is a programmable thermostat designed for central heating radiators. With a 7-day programmable schedule, this corded electric timer allows for precise control over your heating system. Made of durable plastic and featuring a rectangular shape, this white-coloured unit is compatible with Horstmann brand heating systems. It is wall-mounted and equipped with temperature sensor technology, making it an efficient and reliable choice for maintaining a comfortable home environment. Backed by a 24-hour shipping guarantee, this programmable thermostat from Horstmann offers convenience and peace of mind.