Height Measure Compass(DQL-10A)

Height Measure Compass(DQL-10A)
To measure direction, obliquity, gradient, orientation. Have the function of compass and height measure together. Pocket and easy to use, precision, ruggedization. Used in forestry, farmland, water conservancy, setting work.
Height Measure Compass(DQL-10A) product offered by Harbin Optical Instrument Factory