illustrate: 1. The indoor digital hygrometer is ideal for monitoring temperature and humidity in rooms for the elderly and children. Also great for pet and plant rooms. A comfortable environment is very important for your family. 2. The indoor digital hygrometer is the perfect companion for humidifiers and dehumidifiers. You can use a humidifier or dehumidifier to adjust room humidity based on the hygrometer readings. Specification: Product Name: Indoor Digital Hygrometer Material: ABS White color Weight: about 79g Size: about 8*5.9*2.3cm / 3.15*2.32*0.90 inch Product List: 1 * Indoor Digital Hygrometer Comment: Due to lighting effects and shooting angles, there may be color differences in the product, please understand. Due to manual measurement, there may be some size variation. High Accuracy The air thermometer provides temperature measurement between -4.0°F to 158.0°F (-20°C~70.0°C) with an accuracy of 0.1°F/°C. The humidity measurement range is 10%-99%, with an accuracy of 1% RH. Easy Switch Button The button on the back of the indoor digital thermometer allows easy switching between Celsius and Fahrenheit to meet different needs. Easy to Carry One of the features of the temperature and humidity monitor is its compact size and lightweight design, making it easy to carry in your pocket for travel or car use. Applicable Press the button on the indoor thermometer to quickly turn on the backlight, allowing easy reading of room temperature even in the dark. WIDELY USED The indoor digital hygrometer can be used as a baby room thermometer and room temperature thermometer. It is also suitable for use in greenhouses, freezers, and reptile enclosures.