Fast, liquid-damped scale enables precise readings in a matter of seconds. Compass scales 0-360° are accurate to ±1/2°. Clinometer scales 0-90° and 0-150% are accurate to 1/4°. Sturdy lightweight case. Includes lanyard and instructions. 6"L x 2"W.
I've been using Bruton and Sunnto compass and Clinometers for over twenty years and have found them to be the best of quality and durability. Yea you pay more but you will only have to buy one once. It is liquid filled which allows for quick steady findings.
The only down fall is no scale bars for Quad maps.