|
To measure direction, obliquity, gradient, upright, milemeter, horizontal. Used in geology perambulation, colliery and other mine exploitation military training.
Pocket Compass Model DQY-1
Precision long air level 15'?3'/2mm
precision of circle air level 30'?5'/2mm
The reading error ≤0.5?
Dial scale 1?
Weight 0.26kg
Size 85?73?35(mm)
|