Specifications: Power Supply: 3.7V 390mAh lithium battery, USB Type-C User Interface: VA screen with backlight Type of Sensor: Six axis sensor Magnetic Power Seat: Five sides are magnetic Outer Frame Material: Aluminum alloy Measurement Range: 4*90° Accuracy: ±0.2° Resolution: 0.02 Ambient Temperature: 0℃-50℃( Controller only) Automatic Shutdown: 3 min Material: ABS+ magnet Size: 60*60*30mm/2.36*2.36*1.18inch Product Function: Sturdy aluminum frame with strong magnets on five sides. Unit switching: The unit can be switched to mm/m, %, in/ft. Angle measurement. REF relative mode: Short press REF to enter relative value mode (set the current value to 0), short press again to exit this mode. Data lock: Short press the HOLD button to lock the current measurement data. The device is powered by a built-in 3.7V 390mAh lithium battery. Package 1pc Digital inclinometer Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.