Multi-function Compass for Boating, Cartography and Geology: : The orienteering compass can not only show direction, but also can measure azimuth, calibrate azimuth map, measure magnetic azimuth, measure distance, l inclinometer, calculation of speed, slope, etc. Ideal for adventurers, geologists, travelers, etc. The domain has high working efficiency: : The geological compass mainly consists of a compass and an odometer. The compass section has a lifting ring, a disk holder, a magnetic needle and a protractor. More importantly, the frame is designed with Lubber lines and tip holes, which improves tip accuracy. It gives you the right directionThe multi-function compass will guide you in the right direction. direction, you don't have to worry about losing your outdoor activities. More importantly, you no longer worry that the GPS is too weak to see the direction through your phone. The compass can also replace your phone's GPS and give you directions. In short, the guide is necessary for everyone. Stable performance and reliable accuracy: the military compass has a declination regulator magnetic which can manually correct the magnetic declination of all components for greater accuracy. Positioning is more precise with magnetic pin brakes. Also, it combines a line of sight and a mirror to make the compass more reliable. In an emergency, you can use the mirror to reflect light and let your comrades know where you are. Durable and lightweight: the compass is made of high quality plastic, which is waterproof and durable , lightweight, suitable for outdoor carrying. For example: hiking, rowing, adventure, etc. It also comes with a small bag that you can hang on your belt. It's quite affordable.