DETUCK® Multifunctional Military Compass Glow in Dark Surveying Mapping Compass with Map Measurer Distance Odometer Calculator Features:
1,Multifunctional Military Compass. Front side is a compass dial, backside is a map measurer distance odometer calculator dial.
2,High Precision Compass. Accurate magnetic compass clear precise dial scale with 360 degree rotated dial.
3,Map Measurer Distance Odometer Calculator. The measuring wheel design help you measure the distance between two points on the map.
4,Glow in Dark Compass. Help you easy to read in bad weather or night after compass exposed to light.
DETUCK® Multifunctional Military Compass Glow in Dark Surveying Mapping Compass with Map Measurer Distance Odometer Calculator User Guide:
Use the compass in a horizontal state, make the pointer can be free to rotate, in order to ensure the accuracy of the pointer.
To make sure the compass work correctly, please make it stay away from other magnetic objects that may disturb it’s function,such as: magnets, iron objects, metal objects, electrical appliances, mobile phones, watches, stereos, headphones, tapes, sound box, speakers, audio system etc.
Don’t hit the compass against other objects ,so as not to affect the accuracy of the pointer.
Don’t approach high temperatures and avoid sun exposure.
Keep the dial plate and the lens clean, do not use a dirty cloth or hand to wipe.
Close it when not use, keep it away from ferromagnetic materials,especially bank cards and other magnetic cards.