Important things about Compass: The first point is that the compass is also called the north arrow,so the pointing mark on the compass is north.The second point is that the compass is magnetic,and we should stay away from magnetic objects when using it.The third point is that when using the compass to look at the direction,it must be placed horizontally. Applicable occasions and people:This compass is waterproof and shockproof,suitable for driving,camping,hiking,adventure,hunting and other outdoor activities,so this compass is a good tool for backpackers,campers,hikers,hunters,geologists to do outdoor activities. Accuracy and strong practicality: This compass is made from high-strength zinc alloy,It is rugged enough to work in many weather conditions.Bubble levels can increase their accuracy and reduce errors.The special design of the fluorescent light allows the compass to continue to provide direction data to you in a dark environment after absorbing enough sunlight. Function: The compass is used for basic positioning,inclinometer,clear and accurate scale to measure the difference in height,length and tilt angle.The compass comes with a pouch and lanyard that can be hung around your neck or pocket.