Baseline 500 pound capacity hydraulic wrist dynamometer with LCD gauge simply and accurately measures the strength of the wrist muscles during flexion, extension, abduction and adduction and the forearm muscles during supination and pronation. LCD gauge features electronic zero calibration system, max clear button, toggle maximum and current read-out, lb / kg toggle, 2 AAA batteries (included). Dynamometer comes with the table mount and door knob grip to measure supination and pronation. Other grips sold separately. Wrist/forearm dynamometer features the time proven hydraulic system used in the industry accepted Baseline and Jamar hand dynamometers. Dynamometer accommodates the Baseline dual-grip handle. Maximum reading remains until reset. Measurement in pounds and kilograms. Standard with protective carrying case. Made in USA with a 1-year manufacturer's warranty. CE certified.