Name: Abney Hand Level- 7.5 Telescopic
The Abney Hand Level is an Engineering Instrument which can be used to determine height. It is moderately of medium size and weight
It has eye piece (hollow telescopic piece), magnifier glass, protector, wire, screw. Methods of Use. Observer should look through the eyepiece and coincides ...
Abney Hand Level is used to determine slope angle, tree heights etc; Graduated 0-+/-90 degrees, 0-+/-100% on a stationary arc;