Large LCD screen and backlight: improved hygrometer thermometer with 3.7 inch LCD display, easier from any angle and distance in dark conditions . Max and min within 24 hour records: the digital thermometer shows MAX & MIN humidity and temperature records for the last 24 hours, so you can take measures in advance, such as the thermostat or humidifier. Accurate and quick update: the indoor thermometer refreshes every 10 seconds to provide you with the latest readings with sensitive sensors inside. Temperature range: -9.9 C ~ 60 C (14.18 F ~ 140 F), accuracy 1 C; humidity range 0% ~ 95% RH, accuracy 3% RH, suitable for home, bedroom, baby room, kitchen, greenhouse, guitar room, office and wine cellar Comfort level indicator: the room thermometer has 3 levels of symbols: wet/comfort/dry, which shows the different temperatures and humidity based on the air conditioning, so you can easily monitor over action requirements for room climate control and health. with 3 buttons: with 12-hour mode of 12 hours / 24 hours (mm / DD), / F switchable, use 2 x AAA batteries (Not included), simple 1-time set button, our humidity meter is convenient for home use and suitable for outdoor use. color:White Material:ABS size:8.5 x 9 x 2cm Package Contents: 1 x thermometer Only 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.