Feature: 1. [Quality Material] Made of premium flame-retardant PC and ABS material, more High quality \u0026 safer. 2. [3.5-inch Large Display Screen] High-definition VA LCD screen with backlight, easy to operate and read values in low illumination environment. 3. [One-touch Temperature Control] Preset temperatures maintain within ±1°C. 4. [5+1+1 Six Periods Programmable] Maximize comfort and economy. 5. [Data Memory Function] Data will be automatically memorized when it powers off so that you don\u0027 t need to worry about data lost when the power is suddenly off. 6. [Child Lock] You can set this function by pressing and holding up/down button above 5 seconds to lock/unlock your thermostat to prevent child from misoperation. 7. [Saving Cost] With the smart programmable mode, this high-efficiency and energy-saving thermostat can help you effectively save the annual heating cost. 8. [Applied Installation] Suitable for installing in a standard single pattress box or European 60mm round box. (NOT included) Specification: This programmable thermostat is capable of setting (5+1+1) six periods per day with different time and temperatures. According to your individual requirement, you can choose "program mode" or "manual mode". Features: [Quality Material] Made of premium flame-retardant PC and ABS material, more High quality & safer. [3.5-inch Large Display Screen] High-definition VA LCD screen with backlight, easy to operate and read values in low illumination environment. [One-touch Temperature Control] Preset temperatures maintain within ±1°C. [5+1+1 Six Periods Programmable] Maximize comfort and economy. [Data Memory Function] Data will be automatically memorized when it powers off so that you don' t need to worry about data lost when the power is suddenly off. [Child Lock] You can set this function by pressing and holding up/down button above 5 seconds to lock/unlock your thermostat to prevent child from misoperation. [Saving Cost] With the smart programmable mode, this high-efficiency and energy-saving thermostat can help you effectively save the annual heating cost. [Applied Installation] Suitable for installing in a standard single pattress box or European 60mm round box. (NOT included) Specifications: Material: PC+ABS (flame retardant) Color: Black WiFi Function: With / Without (Optional) Power Supply: 95~240V AC, 50~60Hz Power Consumption: < 1.5W Type: Gas Boiler Sensor：NTC Current Load: 3A Accuracy: ±1℃ Resolution: 0.1℃ Timing Error: < 1％ Working Environment: 0~45℃, 5~95％RH Storage Environment: -5~55℃ Installation Hole Distance: 60mm Item Size: Approx. 8.6*8.6*5cm / 3.39*3.39*1.97in Item Weight: Approx. 160g / 5.64oz Package Size: Approx. 10*9.7*6cm / 3.94*3.82*2.36in Package Weight: Approx. 217g / 7.65oz Note: Please read the Users Manual before use. Packing List: 1 * Smart Thermostat 2 * Screw 1 * Users Manual(English) Package List: 1 * Smart Thermostat 2 * Screw 1 * Users Manual(English)