Remote Access & Automation - Access your data remotely or set up automations in your home app (iOS 15.1 or later required for iPhone). The Qingping+ app (iOS only) allows you to export the last 30 days of data. The device sends the latest data to the hub or your phone every 10 minutes. Precision Measurement - Built-in Swiss sensors provide highly sensitive and accurate readings. Temperature range: -9.9~50°C; Humidity range: 0~99.9% RH (in non-condensing environment). The temperature scale can be switched via the button on the back. For an accurate reading, we recommend leaving it undisturbed for at least 20 minutes after opening the package. Smart Design & Versatile Mounting - Multiple mounting options: 1) Easily attach to the wall or remove with a magnetic wall sticker; 2) Open the stand on the back for tabletop placement; 3) Attach to any ferrous surface (due to built-in magnets). The capacitive sensor makes a stylish addition to living rooms, bedrooms, greenhouses, garages, or anywhere you need accurate readings. E-Ink Display & Long Battery Life - The display provides clear, easy-to-read measurements from various angles. Low-power e-ink display and low-power Bluetooth technology provide approximately 8 months of battery life in a typical indoor environment (data from Qingping Lab). Important Notes - Avoid battery leakage. Avoid contact with metal during use. We recommend wearing gloves when installing the battery to prevent short circuits. Dimensions - 60.5*60.5*13.7 mm Package Contents - Thermo-hygrometer x1, Wall sticker x1, Tabletop stand x1, User manual x1, CR2430 button battery x1