SPARES2GO Mains Room Thermostat / Temperature Switch for Combi Boilers Mechanical room thermostat for regulation of room temperature -- Includes a useful neon indicator to show when the heating is on With neutral housing to blend in to any style décor. Designed for wall mounting, with 60mm fixing centres for back-box compatibility, and suitable for in-wall or surface run wiring connection The thermostat cover incorporates four breakouts for surface-run conduit The temperature regulation mechanism is the well-proven sealed bellows system 4 x Fixings included Temperature: 10°C - 30°C, Differential: 1°C Contact Rating: 10 (3) Amperes Systems Compatibility: Mains or Low-Voltage, Suitable for Combi Boilers (with mains switching only)