This thermostat range has been developed to control electric underfloor or water heating or water/gas boiler system. These units are designed for use in commercial, industrial, civil and domestic properties. Features: Simple Interface: The Thermostat get back to basics,make the floor heating temperature control function to the extreme, clear interface and easy-to-use operation. Touch Screen: Thermostat with touch screen display that accurately show room temperature and set temperature in vibrant colors. Save energy while you're away: Uses one-click and sets itself to an Eco Temperature to save energy. WiFi APP Remote Control (WIFI Version Only): Smart life/Tuya smart APP control your thermostat anywhere and any time. Weekly Programmable: 5+1+1 days, you can setting desire temperature each day periods. Easy to Install: Suitable for installation in a standard single pattress box or European 60mm round box. Specifications: Type: Wi-Fi / No Wi-Fi (Optional) Color: Black / White(Optional) Shell Material: PC+ABS (flame retardant) Sensor: NTC Accuracy: ±1 Power Consumption: 1.5W Timing Error: 1% Power Supply: 95~240VAC, 50~60Hz Current Load: 5A (water/gas boiler) Ambient Temp: 0-45, 5-95%RH (Non-condesing) Storage Temp: -5~55 Installation Hole Distance: 60mm Item Size: 86 * 86 * 42mm / 3.38 * 3.38 * 1.65in Item Weight: 110g / 3.88oz Package Weight: 165g / 5.82oz Package Size: 9.5 * 9.5 * 6cm / 3.74 * 3.74 * 2.36in Package List: 1 * Temperature Controller 2 * Screws 1 * User Manual (English)