Height meter, clinometers and combined height and clinometers. Suunto PM-5 provides you with a large selection of height meters, clinometers and combined height- and clinometers. Suunto height meters are instruments for measuring the heights, especially the height of trees, with great accuracy and speed. The height meters can also be used to determine the angle of a gradient. Suunto hand-held clinometers are precision instruments used all over the world by surveyors, engineers, cartographers, geologists, miners and architects and many others to measure heights, vertical angles and slopes quickly and easily. Both height meters and clinometers have sturdy housing bodies made from corrosion resistant anodized aluminum alloy. The scale cards run on special bearings in hermetically sealed plastic containers filled with a liquid which guarantees that they run smoothly and stop quickly. The liquid will not freeze or evaporate, retains full damping properties in all working conditions and eliminates irritating scale vibrations. There is a large selection of scales to choose from. These include normal linear angle scales, i.e. degrees, gons and mils as well as per cent scales, topographic scales, metric or American and special secant scales. FEATURES of the PM-5 Compass by Suunto Acrylic capsule Anodized light-alloy housing Optical adjustment for reading Parallax-free lens Jeweled bearing Damping liquid Nylon pouch with belt-loop Lanyard and metal lanyard ring Available also in feet scales for the US market 2-year warranty SPECIFICATIONS: Dimensions: 75 x 52 x 15 mm Weight: 110 g Anodized light-alloy housing Lanyard and brass loop Nylon pouch with belt-loop Optical adjustment Thread hole for tripod