3-Level Air Comfort IndicatorHumidity meter with humidity level icon indicates DRY/COMFORT/WET air condition quickly with just a glance. Ensures proper humidity, great for monitoring family's living conditions and health by preventing colds, dry skin, asthma, allergy, mold etc. . Clear LCD Display, Easy to ReadHumidity temperature gauge with 3.34 inch large LCD display features neat and slim border, easy to read from any angle and distance. While it's portable and lightweight to take it anywhere easily. / Switchable by "+", 12h/24h selector by "-". NOTE: No backlight function . High Accuracy & Fast RefreshDigital indoor thermometer refreshes every 10 seconds to provide you updated and the lastest readings. Wide measuring range that measures temp from 14.2F~140F(-9.9 ~ 60) and humidity from 10% ~ 99%. The temp accuracy range around 1 while humidity accuracy is 3%RH . Smart Design with 3 MountingHumidity temperature gauge has multiple mounting options: Tabletop Stand, Magnetic Back, Adherency Mount. With adhesive pads and built-in magnet, you can stick or place anywhere you like such as fridge, counter, living room, baby room, kitchen, basement, office, greenhouse, guitar room, office, garden and cellar . Battery Powered & Time SettingComing with 2 CR2032 button battery, each battery can last 8-12 months working. thermometer features day and time shown. Long press the 'Set' button can enter the time setting. .