Features: This home thermometer features a smiley icon that quickly informs you about air conditioning, allowing you to adjust your humidifier or dehumidifier accordingly to create a more comfortable environment. The accuracy of the indoor thermometer is up to 1.8F, humidity is 5% RH, and data measurement updates every 10 seconds to keep you informed of the latest environmental changes. Large-digit LCD display: This lightweight hygrometer thermometer (8.87 7.8 2.18 cm weighing only 30g) is easy to carry. The 2.3-inch large LCD screen with large and bold numbers helps you read temperature, humidity, and time easier and clearer. Indoor thermometer/hygrometer with backlight and clock function, providing clear readings in the dark. 2 installation methods, desktop stand/wall mount, you can install the wall thermometer anywhere, such as living room, kitchen, guitar room, office, and basement. Powered by AAA batteries (batteries included). Package List: 1 pc