illustrate: 1. The indoor digital hygrometer is ideal for monitoring temperature and humidity in the room of 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 to humidifiers and dehumidifiers. You can use a humidifier or dehumidifier to change the 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 difference in the product, please understand. Due to manual measurement, there is a certain error in the size of the product. High AccuracyThe air thermometer provides temperature measurement between -4.0F to 158.0F (-20C~70.0C) with an accuracy of 0.1F/C. The humidity measurement range is 10%-99%, and the accuracy is 1% RH. Easy Switch ButtonThe button on the back of the indoor digital thermometer can be easily switched between C and F to meet your different needs. Easy to CarryOne of the features of the temperature and humidity monitor is its small size and light weight, which can be easily put in your pocket and carried with you for travel and car use. ApplicablePress the bulb pattern button of the indoor thermometer to quickly turn on the backlight of the thermometer, and you can easily read the room temperature even in the dark. WIDELY USEDThe indoor digital hygrometer can be used as baby room thermometer and room temperature thermometer, also can be used as greenhouse thermometer, freezer thermometer, reptile thermometer and hygrometer.