High Accuracy Reading 4.7 inch Large LCD clearly display temperature ranges from -10C ~+ 50C (+14F to +122F) ; hygrometer ranges from 20% to 90% RH(5%RH); accuracy: 1C.(2F). Data measurements are updated every 2 seconds to give you est changes of the environment.Comfort Indicator The temperature and humidity monitor can change baby face icon to provide accurate data in real time DRY/COMFORT/WET condition to help adjust the humidifier, dehumidifier settings and humidistat. Great gadget for monitoring familys living conditions and take a special care for families health. Mufti-functional UsageCan be worked as indoor thermometer,hygrometer,clock,alarm clock,calendar,home ornament,convenient gadget,one product with 5 more functions. Multiple Mounting OptionsThe thermometer hygrometer with table standing, and hole on back side for wall hanging design, put anywhere you want, convenient mounting feature for kitchen, living room, basement, bedroom, guitar room, office etcRechargeable,Long Standby time, PocketWith 100mah rechargeable lithium battery inside(USB cable included),fully charged stand by more than 2months,product not more than 0.195lbs,very light and easy to carry.