Baseline® LCD ER™ hydraulic hand dynamometer has an extended range 300 pound capacity. Unit has blue body and a 2-1/2" LCD gauge. LCD gauge features electronic zero calibration system, max clear button, toggle maximum and current read-out, lb / kg toggle, 9V battery (included). Unit has 2 year manufacturer's warranty. Baseline® hydraulic hand dynamometer gives accurate grip strength readings without the subject being able to "feel" the handle move. The internationally accepted design ensures reliability, user convenience and measurement repeatability. Maximum reading remains until the unit is reset. Five position handle and body design yield results that are consistent with published Baseline® and Jamar® studies. The strength reading can be viewed as pounds or kilograms. CE Certified. Comes in a protective carrying case.