[Large backlit display] The 4-inch (about 10.2 cm) large and clear backlit LCD display has a clear backlit LCD display with large numbers, which can be viewed at any angle and light conditions. To save battery power, the backlight automatically turnsoff after 10 seconds. [Air comfort indicator light] The hygrometer shows the comfort level of your home. There are three levels: dry, comfortable, and humid. According to the current humidity level, you can always understand your home situation. [Maximum and minimum records] Humidity monitor with indoor thermometer can store and display 24-hour maximum and minimum humidity and temperature records. [Various installation options] Wall-mounted hanging holes and desktop brackets provide multiple installation options. It is suitable for different places, such as kitchens, gardens, greenhouses, basements, baby rooms, offices, etc. [Highly accurate readings] Thermometer and hygrometer are equipped with advanced sensors, which can provide accurate humidity and temperature readings for indoor and outdoor at the same time; accurate to 1F and 1~2%RH.