Haga Altimeter

Saves costly field time by making height and slope measurements simple. Measure the angle of elevation and height is indicated directly on the scale for various known baselines. The unit consists of a gravity controlled, damped, pivoted pointer, and a series of scales: 15, 20, 25, 30, and chains (66 ft.) and a percent (gradient) scale. The desired units for the baseline scales are assigned by operator in feet, yards, or meters. Baseline length is selected by turning a knob to the desired scale, which eliminates reading errors since other scales are out of view.