SPECS: Dimensions: 4.1 x 2.5 x 1 in. | 10.4 x 6.3 x 2.5 cm Weight: 3.6 oz | 102 g Resolution: 1deg DESIGN & DETAILS: Brunton's most advanced baseplate compass with sighting mirror, quick-reference lid, and protective rubber foot that stores reference cards with an array of scales TruArc(TM) Global Needle tilts up to 20deg for balanced use worldwide Tool-free declination adjustment is simple and fast to orient magnetic north to true north Meridian lines on vial assist during pre-trip planning when aligning with map grid lines Romer scales provide maximum accuracy of latitude and longitude for easy integration with handheld GPS unit Brunton EverNorth Magnet resists demagnetization over time Magnified readout provides highest degree of accuracy without compromising readability Sighting mirror and sighting line integrated into the cover Dual azimuth ring includes reverse azimuth Align for the most accurate bearings, whether taking or following a bearing Clinometer with 2deg resolution for measuring slope angle or gauging heights of passes, peaks or trees Engineer's ruler Bubble level for absolute precision readings; keeping the compass level (not the needle level) is a critical aspect for taking an accurate bearings Quick-reference lid for easy and speedy readings Map magnifier helps with the smaller details on any map Cover and rubber foot protects the compass and houses reference cards High visibility cling for enhanced performance in low light; can be removed to facilitate map use User-specific reference cards with scales, rulers, and useful tips and information for backcountry travel and trip planning 1deg resolution azimuth ring provides accurate readings Made in the USA in Rivertown, WV