The internal thermometer has a relative humidity of 2~3% and 1F, which is very suitable for measuring fluctuating measurements such as greenhouses. The data measurement values are updated every 10 seconds to provide you with the latest environmental changes. The hygrometer has a humidity level icon to display the dry/comfortable/humid air conditioner, allowing this humidity sensor to ensure that you are always aware of changes in your home/house at a glance. The accurate digital hygrometer thermometer displays temperature and humidity, ready to adapt to environmental changes at any time. Thermo-hygrometer with temperature and humidity monitor can ensure good indoor humidity control for skin, allergens and other health benefits; it can also be used as a refrigerator thermometer, refrigerator thermometer, reptile thermometer, soil thermometer, hygrometer, cigar hygrometer, etc. The indoor thermometer is equipped with a desktop stand, and the temperature monitor can be placed on the countertop or connected to the refrigerator with a magnetic back. Description: Dimensions: 8.5 x 6.5 x 2 cm. Material: ABS. Power supply mode: 2 AAA batteries (not included). Humidity measurement range: -4% ~ 158 (RH). Temperature measurement range: -20 ~ 70 . Package includes: 1 x digital hygrometer. Note: This does not include other things, the color is based on the first picture, and the other pictures only show the effect. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!