Under the power-on state, press plus or minus button to adjust the set temperature.Child Lock Function: The keypad lock function is designed to prevents child from misuse. Press and hold the plus and minus buttons simultaneously for 5 seconds to activate the child lock. At this point, all buttons are locked simultaneously. To cancel the child lock, press and hold the plus and minus buttons simultaneously for 5 seconds.APP Control: Intelligent thermostat, support mobilephone Tuya APP control remotely, you can control the temperature of your home through your cellphone before you come home. And with the device-sharing function, you can add family members and share the device with family members to control the thermostat together.Voice Control: Compatible with and Google Home for voice control of your connected devices for added convenience.Data Storage: No need to worry about losing power, save data when power fails.Fan Coil Operation Selection: ON: Fan coil is normally open; OF: Fan coil is connected to cooling or heating.Wide Applications: Applicable to central air-conditioning, water underfloor heating. Perfect for home, office, shopping malls, hotels and so on.Specifications:Name: Intelligent ThermostatMaterial: PCColor: black, white (optional)Voltage: 85-250VAC, 50/60HzCurrent load: 3ATemperature accuracy: 0.5Temperature setting: 5-70Operating ambient temperature: 0-50Storage ambient temperature: -10 to 60WiFi standard: IEEE 802.11b/g/n 9.WiFi frequency: 2.412-2.484GHZItem size: 86* 86* 40mm/ 3.39* 3.39* 1.57inPackage size: 90* 90* 50mm/ 3.54* 3.54* 1.97inPackage weight: 300g/ 10.58ouncePacking List:1* Intelligent Thermostat1* Cable1* Bag of Screws1* Guideline