【Fast Refresh & High Accuracy】This digital indoor thermometer room hygrometer refreshes every 10s to provide updated and the latest accurate readings. Wide measuring range that measures temp from 14.2˚F-140˚F(-9.9˚C-60˚C ) and relative humidity from 10%-95%, temperature accuracy: +-2˚F(1˚C); relative humidity accuracy: +-3%RH【Air Comfort Indicator】Digital moisture meter with humidity indicator bar quickly shows DRY/COMFORT/WET air conditions with a glance. Reminding you to adjust the humidifier or dehumidifier. It is perfect for monitoring your family's living conditions to create the right environmental state to effectively prevent colds, dry skin, asthma, allergies and more【3.34in LCD Display & Easy to Read】Small humidity temperature monitor with clear bold numbers features neat and slim border, easier to read from any angle and distance. While it's portable and lightweight to carry around easily. Switch Celsius/Fahrenheit by pressing '+', 12h/24h selector by pressing '-'. NOTE: No backlight function【Minimalist Design with 3 Mounting Options】The inside humidity gauge thermometer can be mounted in a variety of ways: desktop stand, magnet attaching, stick on the wall via the metal adhesive pad. You can stick or place it anywhere you like, such as fridge, counter, living room, greenhouse, baby room, nursery, kitchen, basement, office, conservatory, guitar room, office, garden, cellar, warehouse and more【Battery Powered and Long Battery Life】Coming with 2 x CR2032 button cell batteries, each battery lasts 8-12 months. The NOKLEAD indoor hygrometer also display the time and month date. If you have any issues with the humidity reader instrument, please contact us and be willing to provide the best solution for you【Upgraded Calibration Function】:When the product placement or environmental factors impact data accuracy,you can calibrate the sensor for the most-accurate humidity and temperature data. (Temp：Max +-5℃/+-41℉;Humidity：+-10%RH.)