Air Comfort IndicatorThe Humidity Temperature Gauge features face icons to quickly indicate dry/comfort/humid air condition to alert you to adjust your humidifier or dehumidifier accordingly for create a more comfortable environment. High Accuracy and Fast UpdateThe indoor thermometer has high accuracy within 1 (1.8) and humidity is 5% RH, measurements data is updated every 10 seconds to give you the latest environment changes. Compact Display with Large DigitsThis slim and lightweight size hygrometer thermometer (3.5*3 .0 inches, weighs only 30g) is easy to carry. The 2.3 inch large LCD display with big thick digits makes you read the temperature and humidity more easily and clearly. Backlight and clock functionWith the function of backlight and clock, you will get a clear reading at night or in the dark and convenient to set the alarm clock for your work or study. Multiple Mounting OptionsIndoor wall mounted thermometer equipped with 2 mounting options including table stand and hanging hole, you can install the wall thermometer anywhere you like, such as living room, kitchen, guitar room, office and basement, powered by one AAA battery (included).