[Easy to Read and Use] The indoor hygrometer is ready to use right out of the box, no complex function buttons required. Thanks to its clear LCD display, for example, 20C; temperature; 26C indicates a current comfortable temperature, and the thermometer indicates . Humidity; 50% RH means "wet" or "dry". The temperature can be adjusted using the heating or ventilation. [Mini Digital Hygrometer] This stylish thermometer is very compact, measuring 43 x 43 x 13 mm and weighing 21 g, saving space and easy to carry. The indoor hygrometer can be placed on a table, fixed to the wall with a sticker, or hung. It is powered by a CR2032 battery (included). Accurate Measurement & Convenient DisplayThe digital indoor thermometer has a built-in temperature and humidity sensor. Temperature measuring range: -10C to 70C. Humidity measurement range: 10% to 99% RH. Temperature measurement accuracy: 1 C; Humidity measurement accuracy: 5% RH. If the value is within the recommended range or action is required, the comfort marker will display the room's climate conditions in the form of 2 symbols. Know the temperature in your home] With the ARCELI mini room thermometer, you will know the exact temperature and humidity in any room you are in. Measure the humidity and temperature of your room remotely, use your humidifier and dehumidifier in time to monitor the health of your family and prevent colds, dry skin, asthma, allergies and mold on your walls. Suitable for many scenariosThe indoor thermometer can be placed on the table / hung on the wall / stuck to the wall. It can be widely used as a thermometer for living rooms, greenhouses, musical instrument rooms, basements, wine cellars, warehouses, barns, nursery rooms, dressing rooms, aquarium hygrometers, aquaculture thermometers, nursery thermometers, and garden sheds for humidity monitoring. It can also be used with humidifiers, heaters, and air conditioners.