Uses the improved hydraulic system of the hand dynamometer to assure convenience, product reliability, and measurement accuracy and repeatability. The therapist can support the pinch gauge during testing. This yields a more accurate result for all pinch tests (tip, key, and palmer). The results are consistent with the published Baseline® and Jamar® studies. The maximum reading remains until the unit is reset. The strength reading can be viewed as pounds or kilograms. Each dynamometer comes in a rugged carrying case. Unit is made in the US, and has a 1-year warranty.