Smedley III Analog Grip Strength Dynamometer With Case. This is the most popular and widely used grip tester/hand dynamometer in the world. Manufactured in Japan by Takei, it is the most accurate with an accuracy of +/- 2 kg from 5 to 100 kg and a resolution of 1 kg.  It is very durable with a protective clear cover over the pointer. Pointer retains maximum reading and can then be returned to 0 for the next test. Grip distance adjustable from 4cm to 7cm to accommodate a wide range of hand sizes. Includes Case. One Year Warranty