Model C58105 -Clinometer, Compass Combination (Sightmaster)

6.0` X 1.25 ` X 1.63 / 8 oz., Lubber line for direct azimuth/bearing, Readings from the side - accurate to +/- 2.5 degrees, Sapphire jewel bearing inside, A liquid dampened vial, Aluminum inclinometer card with precise scales for increased accuracy, Aluminum body sine scales (0-45 degrees) tangent scales (0-45 degrees), Inch & mm scales (0-5.25` & 0-125mm).