This intelligent thermostat adopts electronic logic circuit to compare room temperature with the set temperature and control the watervalve and fan according to the comparison result, so that room temperature is at a constant value, in order to achieve the purpose of temperature control and create a comfortable environment. Widely used in commercial, industrial, and civil buildings and villas for heating, cooling, or year-round central air-conditioning end fan, and watervalve control. Features: Digital Screen with Backlight: Elegant appearance, single-sided design, scratch-resistant. Large LED touchscreen display with backlight, easy to read. Support backlight selection, you can set the backlight on for 20 seconds or keeps on as needed. Accurate Temperature: Built-in high-precise temperature sensor that detects the ambient temperature, and can automatically obtain the temperature with an accuracy of 0.5°C. Four-speed Wind Regulation: Four wind speed switchable designs, alternately display AUTO (automatic), low, medium, and high wind speed mode (all wind speed mode buttons are invalid in single floor heating mode) . Time Setting: Long press the wind speed button for 5 seconds under the power off state to enter the time setting interface; support setting the day of the week/hour/minute, press the on/off button to save and exit. Adjustable Working Mode: Under the power-on state, short press can switch working mode, support setting single floor heating mode, air conditioning and floor heating integrated mode, cooling mode, and heating mode. Temperature Setting: It supports setting the upper limit value of temperature and the lower limit value of temperature. With the upper-temperature ranges of 20-70, and lower temperature ranges of 5-20. 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 Alexa and Google Home for free 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 Thermostat Material: PC Color: black, white (optional) Voltage: 85-250VAC, 50/60Hz Current load: 3A Temperature accuracy: 0.5 Temperature setting: 5-70 Operating ambient temperature: 0-50 Storage ambient temperature: -10 to 60 WiFi standard: IEEE 802.11b/g/n 9. WiFi frequency: 2.412-2.484GHZ Item size: 86 * 86 * 40mm / 3.39 * 3.39 * 1.57in Package size: 90 * 90 * 50mm / 3.54 * 3.54 * 1.97in Package weight: 300g / 10.58ounce Packing List: 1 * Intelligent Thermostat 1 * Cable 1 * Bag of Screws 1 * Guideline