Abney Level Surveying Leveling Instruments Portable Level Construction
Abney Level Surveying Leveling Instruments Portable Level Construction
The hand level is a small, economical level for use with preliminary surveys to determine travellerway or cableway steel work elevations and other feasibility type site reconnaissance work. The abney level is very similar to a clinometer in that it is used to measure the value of a slope by means of arc measure and grade percentage