Specification :

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.