Product details:

Features a global needle separated from the magnet allowing the compass to work accurately in all latitudes.This precision compass features dual azimuth and quadrant readings (when using the sighting mirror), built-in clinometer, and an adjustable declination screw. Compass is graduated every 2° and numbered every 20°. The built-in clinometer measures heights and slopes to ±90°. Lanyard and declination key are included.