Sensirion High Precision Swiss Digital Sensor: It is primarily used in hygrometers and thermometers, and can measure subtle changes. Temperature difference +0.3 degrees Celsius, humidity difference +3%; temperature measuring range: 0 ° F ～ 140 ° F (0.0 ° C ～ 60.0 ° C); humidity measurement range: 0 to RH. [The world's first electronic ink display] The world's first electronic ink display thermometer. The first high quality rare electronic ink display thermometer and hygrometer, giving you 360 degree high definition viewing experience, protecting your eyesight and health. Due to its low power consumption and elegant appearance, it can also be used as a home decoration, Christmas gift, etc. [° C / ° F switching and three modes of mounting] Switching ° C / ° F; 3D curved surface, bright and round, UI design, elegant and delicate, 6 modes of expression, full of comfort. An expression expresses a kind of comfort. It is also a refrigerator thermometer and hygrometer, which can be attached to the refrigerator with magnets. Product Easily switch between Celsius and Fahrenheit, suitable for universal applications . Lightweight and slim 3D curved display with elegant appearance. The running section of the user interface is round and thin. benefit: The on-screen thermometer and hygrometer give you 360 degree high definition viewing experience to protect your eyesight and health. Universally suitable for raised handles, wall stickers and rubber magnets, you can put it in the bedroom, children's room, kitchen and office. high performance: High precision digital sensors offer you good sensitivity of thermometers and hygrometers. Package contents: 1 * thermometer.