Fangrui Product Details Advanced Digital Display: This Smart Thermostat Is Equipped With A High-resolution Lcd Screen That Enhances Visibility And User Interaction. Its Powered By Two 5v Batteries And Efficiently Controls Your Boilers Operation To Maintain Optimal Room Temperature. Easy Installation Flexible Placement: Designed For Hassle-free Installation, This Thermostat Can Be Mounted On A Wall Or Placed At Any Convenient Location In Your Home. Its Battery Operation Eliminates The Need For Complex Wiring, Offering Greater Installation Flexibility. Customizable Programming: Tailor Your Heating Needs With The Thermostats 5+2 Week Programmable . Set Different Temperatures For Weekdays And Weekends To Enjoy A Comfortable Environment While Optimizing Energy Usage. Safety Features: Equipped With A Child Lock To Prevent Unintended Adjustments And An Antifreeze Function That Protects Your Pipes From Freezing Temperatures, This Thermostat Ensures Your Homes Heating System Operates Safely And Efficiently. Professional Recommen