Usage Tips:Real-time Monitoring: The 13-in-1 multifunctional temperature and humidity monitor allows you to monitor 5 sets of temperature and humidity data in real-time. With the integrated time and date display, it also offers alarm clock functionality for added convenience. WiFi Connectivity: Stay connected with your temperature and humidity readings through the TuyaAPP. This smart device supports WiFi connection, allowing you to monitor and access historical data. Plus, the time and date automatically sync with your phone for easy . Clear and Adjustable Display: Featuring a 2.8-inch TFT screen, this temperature and humidity monitor provides clear and easy-to-read information. You can adjust the screen brightness and toggle between Celsius and Fahrenheit units using the TuyaAPP. Long-lasting Battery: Equipped with a built-in 2000mAh high-capacity battery, this monitor has low power consumption and offers long endurance. No need to worry about wiring or constantly recharging. It's designed for convenience. Durable and Versatile: Made from premium ABS material, this 13-in-1 temperature and humidity monitor is durable and resistant to shocks. It's perfect for various environments such as homes, offices, schools, warehouses, and agricultural settings. Enjoys reliable and accurate temperature and humidity monitoring wherever you need it. Subunit Quantity:5pcs Display:2.8 Inch TFT Screen Temperature Detection Ranges:-20-55℃, ±1℃ Humidity Detection Ranges:0-99%RH, ±3%RH Main Unit Voltage:3.7V Subunit Voltage:3.0V Main Unit Battery:Built-in 3.7V, 2000mAh Lithium Battery Subunit Battery:2xAAA Battery(Not Included) Working Current:180mA Main Unit Size:89x83x36mm/3.5x3.3x1.4in Main Unit Weight:135g/4.8oz Subunit Size:59x59x19mm/2.3x2.3x0.7in Subunit Weight:40g/1.4oz Colour:As Shown Material:Plastic Package Contents: 1 * Air Quality Monitor(Main Unit) 5 * Subunit<br