Jamar數碼手功能評估三件套箱是用于手部各功能，如: 握力、捏力、關節活動度等功能測試和評估的理想工具。

Jamar手功能評估箱三件套，包括：Jamar?數字200磅手握力計， Jamar? 30磅機械捏力計，小關節測角儀。

Jamar握力計是醫用級握力計和科研級握力計國際公認的工具。

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Validating the Capability for Measuring Age-Related Changes in Grip-Force Strength Using a Digital Hand-Held Dynamometer in Healthy Young and Elderly Adults