The Suunto KB-20 is a compact handheld compass that is used primarily for marine and professional outdoor use. The compass is lightweight, and water resistant that was also designed to float on water so you never lose it in the water. The KB-20 is known for its accuracy, as it is always accurate within 1° and has a graduation of 1° and has a reverse scale.
This Suunto clinometer can be used as a hand level, builders level, optical plummet, and a slope indicator. It measures vertical angles, computes height, determines slope angles, and levels for rough surveying jobs. The liquid inside will not freeze or evaporate.