Digital thermostat for flush mounting in standard wall boxes, the room regulator can be set within a range of 5 to 55 °C Built-in room sensor and external floor sensor; Thermostatic switch ideal for regulating electric and water powered heaters White thermostat with weekly programme (5/2, 6/1 or 7 days); the regulator turns on your heating circuits when the temperature is below the set temperature With room sensor and ground sensor, NTC with 2 m cable, antifreeze function, LCD display and backlight, IP protection rating: IP21 Ideal temperature switch for infrared heating, electric heating, hot plates, surface heating, terrarium heating; room thermostat for electric underfloor heating Features: Backlit display Weekly program. Soil temperature. Calibrated / Offset Display. Technical specifications: Mounting type: recessed Wired Power supply voltage: 230 V Max. Switching power: 16 A / 3680 W Setting type: 2 points ON-OFF. Operating temperature: 5-50°C. Probe: internal and external, NTC with 2m cable. Temperature adjustment range (internal): 0-55°C (space probe). Temperature adjustment range (external): 5-55°C (floor probe). Frost protection: yes. Soil limitation range 5-50°C. Screen/Lighting: Yes IP protection rating: IP21. Dimensions: 80 x 90 x 13/43 mm Package Content: Room thermostat E51. Floor sensor. Mounting hardware. Instructions (English language not guaranteed). The E51 digital thermostat gives you the desired heat in any room.