This intelligent thermostat adopts electronic logic circuit to compare room temperature with set temperature and control watervalve and fan according to comparison result, so that room temperature is at a constant value, in order to achieve 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 backlight on for 20 seconds or keeps on as needed. Accurate Temperature: Built-in high-precise temperature sensor that detects ambient temperature, and can automatically obtain 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 wind speed button for 5 seconds under off state to enter time setting interface; support setting day of week/hour/minute, press on/off button to save and exit. Adjustable Working Mode: Under -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 upper limit value of temperature and lower limit value of temperature. With upper-temperature ranges of 20-70, and lower temperature ranges of 5-20. Under -on state, press plus or minus button to adjust set temperature. Child Lock Function: keypad lock function is designed to prevents child from misuse. Press and hold plus and minus buttons simultaneously for 5 seconds to activate child lock. At this point, all buttons are locked simultaneously. To cancel child lock, press and hold plus and minus buttons simultaneously for 5 seconds. APP Control: Intelligent thermostat, support mobilephone APP control remotely, you can control temperature of your home through your cellphone before you come home. And with device-sharing function, you can add family members and share device with family members to control thermostat together. Voice Control: Compatible with and for free voice control of your connected devices for added convenience. Data Storage: No need to worry about losing , save data when 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 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.