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. Make the Touch icon of white backlight, which makes it easier to read and turn on the screen in dark conditions (automatic 15 seconds). Max and min records The digital thermometer displays max and min humidity and temperature records for the past 24 hours, allowing you to take action in advance, such as adjusting the thermostat or temperature humidifier. (NOTE: Hold and long press the button/ can reset MAX and MIN data.) Accurate and fast updatingThe indoor thermometer refreshes every 10 to provide you with the most square readings with sensitive sensors inside. Temperature range -9.9~60C, accuracy 1; humidity range 10%~95% RH, Accuracy 3% RH, suitable for indoor home, bedroom, baby room, kitchen, greenhouse, guitar room, office and wine cellar. Comfort level indicator The 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 action needs for climate control and health of the piece. Smart design with 3 buttons with mode and date of 12/24/24 hour (DD/MM) Mode, /switchable, easy time set button 1, our home humidity gauge is convenient and suitable for indoor outdoor use.