Usage Tips: <ul><li>4 Packs Mini Hygrometer indoor thermometer allows you to easily know the different corners of home environment temperature and humidity around you.Compact Design with Clear LCD Display. Wide measuring range that measures temp from -9.9Celsius ~ 60Celsius and humidity from 10% ~ 99%. The temp accuracy range around 1Celsius while humidity accuracy is 3%RHPocket Size: The mini design digital thermometer hygrometer is slight and portable. This 4-pack accurate temperature humidity monitor meter is perfect to measure air condition in real time.Comfort Indicator: Humidity temperature gauge features water drop icons to indicate air comfort level which help to adjust the humidifier dehumidifier settings and humidity great for monitoring family's living conditions and health by preventing colds dry skin mold.This indoor thermometer is a must have to maintain right humidity and temperature level for sensitve humans animals plants and more. As you know too dry or too wet too hot or too cold are both not good. Many fans enjoy this versatile temperature \u0026 humidity meter on bed room reptiles terrarium garden soil greenhouse warehouse basement closet wine cellar humidor guitar room and freezers.Colour:WhiteMaterial:plasticSize:5 x 3.4cmPackage Contents:4 x HygrometerOnly the above package content other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</li></ul>