Features:Humidity meter with humidity level icon indicates air condition allowing this humidity sensor to ensure you’re always aware of changes to your home/household with just a quick glanceHigh-end Electronic-INK screen, high visibility of the full perspectiveUltra small body, lightweight and portable, you can place it at any corner at your home freelyBuilt-in storage function, can store up to 3 months of historical data in the Bluetooth Hygrometer and 6 months in cloud storageIt offers real-time temp/humidity readings with large numbers on Electronic-INK screen, easy-to-readBuilt in Swiss made smart hygrometer sensor provides high precise monitoringLinked with other smart devices, such as smart air conditioner and smart humidifierCompact and exquisite designMultiple mounting options, features 3 mounting options - Tabletop Stand/Magnetic Back/StickerA button battery life of up to one year, energy-saving and eco-friendlyUsing PC/ABS+PMMA eco-friendly material to ensure safety and health3. Specification:Product: MiaoMiaoCe Bluetooth ThermometerProduct model: MHO-C401Temperature range: 0~ 60 °CHumidity range: 0 ~ 99% RHProduct weight: 36gProduct size: Approx. 6.45*6.45*0.97cm/2.54*2.54*0.38inWireless Network Bluetooth 5.0Working Voltage: DC3VBattery type: CR2032 button battery4. Note:There is a little of difference according to manual measurement.Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.5. Package List:1*Bluetooth Thermometer and Hygrometer lite1*Wall sticker1*Bracket1*CR2032 button battery