Abney Levels with Clinometer Measure Slope Values by Arc and Grade
Unique Abney Levels with Clinometer determine slope values by means of arc measure and grade percentage. Perfect for surveyors, engineers and foresters. Abney Level features a 5-1/8"L tube. 1-1/8" radius arcs are graduated in degrees from 0–90º in both directions with vernier readings to 10 minutes. Slope scales are 1:1 to 1:10. The Deluxe Abney Level also features a 5-1/8"L tube and 1-1/8" radius arcs graduated 0-90º in both directions with vernier readings to 10 minutes and 1:1 to 1:10 slope scales. Deluxe model adds a percent-of-grade scale from 0-100º. Both models include a belt-loop Cordura® case.