Feature: 1. You can remotely control your home temperature through mobilephone. 2. Compatible with Alexa, Home and Yandex Alice, offers simple voice command control. 3. Three modes adjustable: antifreeze, set and program. 4. With programming function, -5+2/6+1/7 days, supports different temperature setting accordingly with 6 time-modes daily. 5. Backlight brightness can be adjusted and turned off to avoids disturbing sleep. 6. Temperature calibration function, display temperature range difference adjust temperature calibration (-9.9℃ to 9.9℃). 7. Three sensor selection mode: internal sensor, external sensor and both sensors. 8. You can creates group to realizes group control in different room. 9. Children lock function is designed to prevents children from operating by mistake. 10. Group control and family share function, control the device together with your family member. Specification: Control with Tuya Wifi included for water heating, electric heating and water/gas boiler heating system, easily enable the temperature correction and high limit temperature ceiling for perfect room temperature, focusing on making simple, human, delightful feelings for your various decoration styles. (Note: current load is 3A for water heating and water/gas boiler,16A for electric heating.) Features: You can remotely control your home temperature through mobilephone. Compatible with Alexa, Home and Yandex Alice, offers simple voice command control. Three modes adjustable: antifreeze, set and program. With programming function, -5+2/6+1/7 days, supports different temperature setting accordingly with 6 time-modes daily. Backlight brightness can be adjusted and turned off to avoids disturbing sleep. Temperature calibration function, display temperature range difference adjust temperature calibration (-9.9℃ to 9.9℃). Three sensor selection mode: internal sensor, external sensor and both sensors. You can creates group to realizes group control in different room. Children lock function is designed to prevents children from operating by mistake. Group control and family share function, control the device together with your family member. Specifications: Color: black, white (optional) Type: 16A electric heating, 3A water heating (optional) Material: plastics Power: 100-250VAC, 50-60Hz Room Temp. Range: 5-70°C Display Temp. Resolution: ±0.5°C Working Temp.: 0 to 50°C Storage Temp.: -10 to 60°C Item size: 86 * 86 * 40mm / 3.4 * 3.4 * 1.6in Package size: 100 * 95 * 65mm / 3.9 * 3.7 * 2.6in Package weight: 267g / 9.4ounce Packing List: 1 * Thermostat Package List: 1 * Thermostat