Fix the compass in a relatively open position of the car or hull, and try to keep it in a horizontal position and start using it until it is stationary.
Compass: Considering the driver's convenience in observation and habit, the magnetic steel of this product is specially reversed, and the direction of the compass of this product is the direction of the car. (Opposite direction to conventional compass products. The reading of this product only needs to read the scale indicated by the pointer of the watch movement of the product)
Compass screws are used to fix the compass to the desired position of the car or hull. The key piece is used to adjust the NS,EW hole under the compass chassis to adjust the compass direction deviation problem. Green film is double-sided tape used to stick the compass to the position of the car or ship