Features: *The thermostat of the gas boiler adopts a liquid crystal digital display screen. Powered by two 1.5 V batteries. Used to control the start or stop of the boiler to regulate temperature. The thermostat detects room temperature, and when the actual room temperature is lower than the set temperature, the thermostat controls the boiler to start working. Then, when the actual room temperature is higher than the set temperature, the thermostat controls the boiler to stop working. *Convenient installation on a wall or standing in a certain place; *Powered by a 1.5V battery, it can be placed anywhere you want; *Can be programmed for 5+2 weeks; *Children's locks to avoid accidental operation; *Antifreeze function. *Please make sure that a professional person installs your thermostat. *There is a protective film on the screen. Please tear them off if you want to use them. Specifications: *Material: Plastic+Metal *Color: As Pictures Show *Size: 86*86*28mmApprox.) *Voltage: Two 1.5V batteries *Power consumption: