Name: Mini Compass
Housing: Alloy/Brass
Size: 22mm * 8mm
Weight: 17.6 grams of brass, 9.5 grams of alloy
Carrying method: hanging buckle

It can also be used for anti-magnetic bearings and internal vacuum packaging in low light environments. The positioning is accurate and fast, and it can still work in high or low temperature environments.
prevention:
Please use it whenever possible to improve accuracy. To avoid confusion with magnetic needles, please keep a certain distance from magnetic objects (such as high-voltage lines, generators, speakers, magnets, etc.) during use.