Model: WS1065 - Quantity: 1 piece - Color: Black + silver - Material: ABS - LCD Display: 4.9" - Frequency: 433MHz - Outdoor Temperature and Humidity - Temperature range: -40'C~60'C - Humidity range: 16%~99% - Temperature Resolution: 0.1 - Temperature Accuracy: +/- 1'C - Humidity resolution: 1%RH - Humidity Accuracy: +/-5%RH - Temperature unit: 'C/'F - Air pressure unit: hPA - Clock format: 12/24 hour - Power Supply: Transmitter: 2 x AAA batteries; Receiver: 3 x AA batteries - Features: Maximum/minimum record of in/out temperature and humidity; Indoor/outdoor low bat indicate; Weather forecast; Barometric pressure graph display 6 interval changing of pas 12 hours; Moon phase; Back light; Clock alarm; Perpetual calendar - Packing list: - 1 X Transmitter - 1 x Receiver - 1 x Chinese / English user manual - 3 x Screws