The SAEHAN Hydraulic Pinch Gauge is used for hand-strength testing by measuring tip, key and palmar pinch. The Pinch Gauge can be used as a diagnostic tool, or for monitoring the progress of rehabilitation. Pinch force is measured in pounds and kilograms (45lbs or 2okg. Maximum reading) on a dual scale. Practitioner, not patient, supports this 0 to 20kg device allowing highly accurate test result for all pinch tests (tip, key, and palmer). Dual scale shows both pounds and kilograms. Includes carrying case CE marked and FDA approved.