HIGH RELIABILITY & ACCURACY: Fast response that measures every 10 seconds with 24 sensitive VENTS to provide updated and accurate readings, wide measuring range that measures temperature from 32.0? to 122.0??0.0?~50.0?), temperature accurancy range around �2.7? ( �1.5?). Humidity sensor measures humidity from 20% to 95%, humidity accurancy range around �5%. AIR COMFORT LEVEL INDICATOR: Level icons indicate comfortable, un-comfortable and normal conditions. Habor hygrometer thermometer measures indoor humidity and indoor temperature in time help to adjust the humidifier, dehumidifier settings and humidistat, great for monitoring family's living conditions and health by preventing colds, dry skin, asthma, allergy, mold. CLEAR LCD DISPLAY MONITIOR: Bright and black front panel with a clear LCD display, easy to read even from a far distance. And humidity gauge indoor thermometer has no complicated function button??/? Switchable), Indoor thermometer displays temperature in Fahrenheit or Celsius. CLEVER DESIGN: Multiple mounting options by Habor humidity gauge room thermometer with magnet attaching, table standing, and wall hanging design, put anywhere you want, convenient mounting feature for every type of room like kitchen, garden, greenhouse, basement, baby room, guitar room and office. POCKET SIZE & MAXIMIZE SPACE: It's a compact and lightweight design, so you can easily put it in your pocket and take it anywhere you want. Also, the compact in size will be great for space-saving when placing it at your desktop or nightstand. It comes with a CR2 battery and 6 months of working time. Please remove the protective film before use.