[Easy to read and use] The indoor hygrometer is ready to use straight out of the box, without complicated function buttons. Thanks to the 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 in time by heating or ventilation. [Mini Digital Hygrometer] This beautiful thermometer is very compact, measuring 43*43*13mm and weighing 21g , it is both space-saving and easy to carry. The indoor hygrometer can be placed on a table, attached to the wall with a sticker or hung. It is powered by a CR2032 battery (included). [Accurate measurement and convenient display]The digital indoor thermometer has a built-in temperature and humidity sensor. Temperature measurement range: -10C to 70C; humidity measurement range: 10% to 99% relative humidity. Accuracy of temperature measurement: 1C; humidity measurement accuracy: 5% RH. If the value is within the recommended range or if action is required, the comfort marker will show the room climate in the form of 2 symbols. Know the temperature in your home] With ARCELI mini room thermometer, you know the exact temperature and humidity in all room you are in. Remotely measure your room's humidity and temperature, use your humidifier and dehumidifier in time to monitor your family's health and prevent colds, dry skin, asthma, allergies and mold on your walls. Suitable for many scenarios]The indoor thermometer can be placed on the table / hung on the wall / glued to the wall. It can be widely used as living room thermometer, greenhouse, musical instrument room, basement, wine cellar, warehouse, barn, nursery, changing room, aquarium hygrometer, aquaculture, plant shoe thermometer, humidity monitor garden shed. It can also be used with humidifiers, heaters and air conditioners.