DQL-8 Geology Compass

الوصف

●The Pocket Compass Model DQL*8 is a necessary measuring instrument for geology survey , colliery, other mine exploitation and ***** can measure direction, obliquity, gradient, upright, milemeter, horizontal etc. ●Main specification Damping time of needle <*5s Graduation circle 0°~**0° Dial scale 1° Precision of long air level *0' ± 5'/2mm Precision of circle air level *0' ± 5'/2mm Reading error ≤0.5° Color Black Material Aluminium alloy crust Size *0×*0×*5mm Weight 0.*4kg