Material: ABS Size: 85x85x28mm Sensor: built-in Color: White Backlight: blue or orange Working voltage: 2 x 1.5V AA batteries (not included) Power consumption: <170uW Temperature control range: 5-99℃ (factory setting is 5-35℃) Temperature limit range: 5-99℃ Temperature control accuracy: ±1℃ 1,1. Easy to install on the wall or stand anywhere. 2,2. Wireless , powered by AA batteries, can be placed anywhere. 3,3. You can set 5 and 2 programmable weekly. 4,4. Child lock to avoid misoperation. 5,5. Antifreeze function. 6,Features: 7,The gas boiler thermostat has an LCD digital display. 8,It is powered by two AA batteries 1.5V. 9,It is used to start or stop the boiler to adjust the temperature. The thermostat detects the room temperature, and when the actual room temperature is lower than the set temperature, the thermostat controls the boiler at the beginning of work. 10,When the actual room temperature is higher than the temperature you set, the thermostat will control the boiler to stop working.1 x thermostat<br /> 2 x mounting screws<br /> 1 x English manual