手水準儀 Topographic Abney Level Clinometer

手水準儀是一種簡易測量儀器，它可以概略地測量地面兩點間的高差、傾斜角（或坡度）。儀器輕便、靈巧，野外測量和攜帶都極為方便。適用於公路及地形的勘測和斷面的測量。附圓柱形水平泡，游標尺及反射鏡。

Abney Levels are used in Land Surveying which consists of a fixed sighting tube, and a movable bubble level that is connected to a pointing arm, and a protractor scale. The Topographic Abney Level is easy to use, affordable, and when used correctly is a very accurate land surveying and construction tool. Topographic Abney Levels are used to measure degrees, percent of grade, topographic elevation, and chain correction. The user can use trigonometry to determine height, volume, and grade.

度盤直徑：Φ60mm

刻度範圍：角度＋60°～0°～-60°

坡度（45°～0°35’）1:1～1:100

度盤分度值：1°

游標格值：10’

長水準器角值：20’/2mm

儀器尺寸：130×56×29（mm）

儀器重量：250g