Liquid damped compass vial. Faces of dials are graduated in 2 degree and 5 degree intervals. Edges of dials are graduated in 1 degree intervals. Magnified eyepiece reads 1 degree graduations to a fraction of a degree. Bubble leveler built in for precise reading. Threaded port for tripod mounting. Ruler marked on both sides in centimeters and inches. Machined alloy body 3 1/4x2 1/2x1 1/4 inches (folded); Weight 5.2ounces. Lanyard and thumb ring. Nylon carrying pouch with belt loop and snap closure included with unit.