Digital LCD Display: This gas boiler thermostat features an easy-to-read screen powered by two 1.5V batteries, allowing you to control the boiler's start and stop and regulate the temperature. It senses the ambient temperature and operates automatically, starting when it's too cold and stopping when it's too warm. Powered by a 5V battery, the thermostat can be placed anywhere without worrying about power supply or wiring complications. 5+2 Week Programmable: The programmable digital thermostat can be easily programmed for 5+2 weeks, allowing you to define different temperature preferences for weekdays and weekends according to your specific needs. Easy Installation: The programmable digital thermostat can be easily installed on a wall or placed on a specific location, offering flexibility in placement options. Enhanced Safety Features: The thermostat comes with a child lock function to prevent accidental operation. Plus, it has an anti-freeze function to protect your heating system in cold temperatures. Features: * Gas boiler thermostat with a digital LCD display. Powered by two 1.5V batteries. Used to control the boiler's start and stop to regulate the temperature. The thermostat senses the ambient temperature, and when the actual ambient temperature is lower than the defined temperature, the thermostat controls the boiler to start working. Then, when the actual room temperature is higher than the defined temperature, the thermostat controls the boiler to stop working. * Easy installation on a wall or standing in a specific location. * Powered by a 1.5V battery, it can be placed anywhere. * Programmable for 5 + 2 weeks. Avoid accidental use. * Anti-freeze function. * Please ensure a professional installs your thermostat. * There is a protective film on the screen. Please remove it before use. Specifications: * Material: plastic + metal. * Color: As described. * Dimensions: approximately 86 x 86 x 28 mm. * Voltage: two 1.5 V batteries. * Power consumption: <170 Uw. * Current load: 3 A. * Temperature adjustment range: 5 to 90 ℃. * Switching difference: ± 1 ℃. * Room temperature: -5 to 50 ° C. * Protection box: IP20. * Non-flammable housing material: PC, V-0. * Sensor: Integrated sensor. * Application: Underfloor heating. Package Contents: 1 Thermostat. 2 Mounting screws. 1 English manual.