Features: DUAL USE: Pay attention to your room environment and prepare for seasonal changes by using our hygrometerthermometerto have a quick and accurate view of the temperature and humidity. LARGE LCD DISPLAY: Expression alert featuring smileycrying face offers a clear and intuitive view of your room. 24-hour data recording, maxmin records, dual measurement unit conversion, and alarm clock are all displayed on the screen. ACCURACY: Built-in advanced temperaturehumidity-sensor ensures that it can be accurate to 1℃(1.8F)and 5%RH. Dual air inlet induction designwith 1-second refresh gives you a real-time change of the house situation. WALL-MOUNTBRACKET: You can either mount the meter on the wall with the back hanging-hole or place it on the table with the foldable bracket. BACKLIT DISPLAY: Lightly press any button and the backlight will last for 6 seconds. Makes you easier to read even in dim light conditions.