【Large LCD Screen & Backlight】 Size 3.6 * 3.4 * 0.94inch, upgraded hygrometer thermometer with 3.7inch LCD screen, easier to read from any angle and distance. Enable the white backlight touch icon, making it easier to read and turn on the screen in dark conditions (15 seconds automatic). 【Max & Min Records】 The digital thermometer displays the max & min humidity and temperature records in the past 24 hours, allowing you to take action in advance, such as setting the thermostat or temperature humidifier. (NOTE: Holding and long pressing the ℉/℃ button can reset the MAX and MIN data.) 【Accurate and Fast Refresh】The indoor thermometer refreshes every 10 to provide you with the most accurate readings with sensitive sensors inside.Temperature range -9.9 ~ 60 °C, 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 levels