Suunto TWIN R/90 L and TWIN 360 R/PCL
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The Suunto Twin has two precision instruments in one.
It is used for directional indications and slope/height measurements at an accuracy of +/- 0.25?. The Suunto Twin is also widely used for the installation and positioning of satellite antenna. It is a liquid-filled precision compass and clinometer in one sturdy, compact aluminium housing, ergonomically designed for comfort and ease of use.

The Suunto Tandem
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The Suunto Tandem has two precision instruments in one. Suunto Tandem is an excellent tool for surveyors, engineers, cartographers, geologists, miners, architects and for anyone who needs to be able to measure directional indications, height, vertical angles and slopes – with speed and accuracy. The Suunto Tandem is all you need for both slope/height measurements and compass bearings. You can change the Tandem from compass to clinometer with the click of your wrist. The Tandem is a liquid-filled precision compass and clinometer in one compact aluminium housing.

Pocket Soil Penetrometer
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The hexagon shape and rugged construction makes this the best tool for the job. After Making sure the upper portion of the piston is fully depressed, press the lower end of the piston against the surface to be measured. The number showing on the upper portion of the piston is the tons per square foot and kilograms per square centimeter for the measured surface. Divisions are every 0.25 tons per square foot, from 0 to 4.5 tons per square foot. Size is 8 x 5/8, weighing four ounces. Optional foot also available.