About this item Large LCD display and backlightSize 3.6*3.4*0.94inch, upgraded hygrometer thermometer with 3.7 inch LCD display, easier to read from any angle and from a distance. Feature the white backlight Touch icon, which is easy to read and turn on the screen in dark conditions (automatic 15 seconds). Max and min records The digital thermometer displays the records of max and min humidity and temperature over the past 24 hours, allowing you to take action in advance, such as adjusting the thermostat or temperature humidifier. (NOTE: Holding and long pressing the / button can reset the MAX and MIN data.) Accurate and fast updatingThe indoor thermometer refreshes every 10 to provide you with the most up-to-date readings with sensitive sensors inside. Temperature range -9.9~60C, accuracy 1; humidity range 0%~99% RH, Accuracy 3% RH, suitable for indoor home, bedroom, baby room, kitchen, greenhouse, guitar room, office and wine cellar. Comfort Level IndicatorThe room thermometer includes 3 icon levels: Wet / Comfort / Dry, which displays different temperature and humidity levels based on air conditioning, allowing you to easily monitor the action needs for climate control and room health. Smart design with 3 buttonswith 12/24/24 hour mode and date (mm/dd) Mode, / switchable, powered by 2*AAA batteries (included), easy time set button 1, our home humidity gauge is convenient and suitable for indoor outdoor use.