Application:
Mainly used for magnetic orientation, measurement of distance, level, altitude difference, gradient and etc.

Optical Compass DQL-1
Magnification: 8x
Aperture: 14mm
Field of View: 1º
Resolving Power: 30' 15"
Multiplication Constant: 100
Additive Constant: 0.18
Shortest Focusing Distance: 2m
Max. Height: ±50º
Bubble Accuracy: 30'/2mm
Min. Graduation: 1º
W. Special wooden Tripod: Yes