Clinometer is an instrument for measuring angles of slope (or tilt), elevation or depression of an object with respect to gravity. It is also known as a tilt meter, tilt indicator, slope alert, slope gauge, gradient meter, gradiometer, level gauge, level meter, declinometer, and pitch & roll indicator.
Brunton Clinomaster The Brunton ClinoMaster height meter/clinometers represent the highest quality in precision sensitivity and durability. The ClinoMaster can measure the height, angle and scope of almost anything readable from 0-90° and 0-150°, with estimations to 0.25°. A rugged, aluminum housing has inch and mm scales. It also features a tangent table for quick height