Features:  LCD Display with Backlight: This temperature and humidity infrared controller with a large LCD dispay screen and the backlight can be open or closed by your needs.  APP Remote Control: After connect with your mobilephone correctly, you can control the controller and your air conditioner on your mobilephone through Tuya App, you can control it easily even if you are far away from home.  Child Lock: This infrared controller has the function of child lock, which can effectively avert the setting error caused by children touching it.  USB Power Supplys: This device adopt USB power supplys, plug and play, very convenient.  Wide Applications: This tool can be widely used in your home, office, living room, bed room and so on.    Specifications:  Material: ABS  Power: Type-c, USB, direct current 5V 1A  WiFi: 2.4GHz  WiFi standard: IEEE802.11 b/g/n  Max. wireless distance: 45m  Max. working current: 550mA  Standby consumption: 25mA  Temperature control ranges: 16℃~30℃  Temperature detecting ranges: -10℃~60℃  Humidity detecting ranges: 0~90% (no condensation）  Accuracy:  Temperature: 0.3℃  Humidity: 5%RH  Package size: 90 * 90 * 20mm / 3.5 * 3.5 * 0.8in  Package weight: 80g / 2.8ounce    Packing list:  1 * Temperature Humidity Sensors