If you've been looking for a multi-functional digital hygrometer, then your search is over! That's because our product measure temperature and humidity, suitable for greenhouse, wine cellar, warehouse, office, bedroom, and etc. At the same time, it can also use an alarm clock and watch the time. It can also be used as a mirror. Features -Material: ABS, acrylic. -Size: About 15.00X8.50X1.20cm/5.89X3.34X0.47inch. -Power supply: 5V1A external power supply. -Temperature range: -20 degree centigrade~70 degree centigrade. -Temperature error: ±1 degree centigrade. -Humidity range: 20%~95%. -Humidity error: ±5%. -Selected ABS and acrylic materials, safe and environmentally friendly. -Multiple functions, led display, large and clear screen, touch screen buttons. -Magnet adsorption function, detachable standing foot is convenient for your use. -Four-level manual dimming and light sensor automatic dimming, there is always one suitable for you. -Power-off memory function, USB charging method is simple and convenient. Package list: 1 x bracket 1 x usb cable 1 clock 1 x English manual