Tandem Compass And Clinometer:The Suunto Tandem is a liquid-filled precision compass and clinometer in one compact aluminum housing. This instrument is an excellent tool for satellite dish and cellular phone site installation, surveyors, engineers, cartographers, geologists, miners, architects and for anyone who needs to be able to measure directional indications, heights, vertical angles and slopes - with speed and accuracy. Edges at 90 degrees angles for contact measuring.
