outdoor multifunctional precision compass

Maintenance and Maintenance Methods:

1. When using and placing the compass (North), do not approach iron magnetic objects, high-voltage lines, or electromagnetic devices, etc., to avoid causing errors and reducing sensitivity.
2. When not in use, it should be placed in a place with good ventilation and dryness to prevent mold.
3.When the surface is dirty, it can be lightly wiped with a white fluffy cloth to maintain the smoothness of the surface.