Air Comfort Indicator: The humidity temperature gauge features face icons to quickly indicate the dry/comfort/humid air condition to alert you to adjust your humidifier or dehumidifier accordingly to create a more comfortable environment. High Accuracy & Fast Update: The indoor thermometer has high accuracy within ±1℃(1.8℉) and the humidity is ±5%RH, the data measurements are updated every 10 seconds to give you the latest changes in the environment. Compact Screen with Large Digits: This hygrometer thermometer with slim and lightweight size (3.5*3.0 inches, weighs only 30g) is easy to carry. The 2.3 inch large LCD display with big, thick digits allows you to read the temperature and humidity more easily and clearly. Backlight & Clock Function: With the backlight and clock function, 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 Options: Indoor wall thermometer equipped with 2 mounting options, including a tabletop stand and a 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). Portable Thermo-Hygrometer The hanging hole on the back allows you to hang the sensor anywhere you want, or simply place it on your desk. Low Power Consumption With the low power consumption display, the room temperature monitor can work for at least 1 year. Widely Application Suitable for baby room, nursery, office, closet, incubator, greenhouse, garden, wine cellar, basement creature terrarium, etc.