【Air Comfort Indicator】Humidity meter with humidity level icon indicates air condition, allowing this humidity sensor to ensure you’re always aware of changes to your home/household with just a quick glance,help to adjust the humidifier, dehumidifier settings and humidistat. 【High Accuracy and Quickly Refresh】Wide measuring range that measures temperature from -4.0°F to 158.0°F(-20°C~70.0°C). Humidity sensor measures humidity from 10% to 99%RH, inside thermometer humidity has high accuracy of ±1.8°F(±1°C)and ±5%RH, making it ideal for measuring fluctuating readings like in a greenhouse; Data measurements are updated every 10 seconds to give you latest changes of the environment. 【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. 【Healthier Home & Environment】Thermometer hygrometer with temperature