Harbin Geological Compass DQL-3 Size: 80*70*31mm; Material: Metal and glass; compact, small size, light weight, easy to carry, easy to operate and has a precision, reliable, stable performance characteristics. Rational design, excellent performance, high sensitivity, strong anti-interference. Professional Geological Compass, used to determine the target position of the needle through the dial reading. At the same time, using a heavy vertical type goniometer with readings on the steering wheel angle, you can determine the target of a variety of slope angle. Product use: measured occurrence, including strike, dip, dip; Terrain preliminary survey include, fixed orientation (ie, intersection point, measuring slope angle, fixed level; the measured vertical angle). Structure: The instrument cover and the housing through the shaft constitute the main body of the instrument.