The ESI ESRTD5 Digital Room Thermostat is a white, surface-mounted device that operates on a corded electric power source. It is designed for central heating radiators and features a square-shaped digital display with a 1.57-inch size. This programmable thermostat, compatible with the 5 Series system, offers heat-off system switching and frost protection properties. With a voltage of 230V and a temperature sensor technology, this thermostat from ESI is a reliable choice for maintaining a comfortable living space.
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