The Horstmann 425 Diadem Programmer is a 7-day programmable thermostat designed for central heating radiators. This electric-powered device is wall-mounted and features a rectangular thermostat shape. Made of white plastic, it is compatible with a variety of central heating systems and can be integrated into a smart home setup. With its analog/mechanical control style and programmability, the Horstmann 425 Diadem Programmer offers convenient and efficient heating control for your home.
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