Maxing out the standard electronic hand grip dynamometer?
It's time to move onto the heavy duty dynamometer, beefed up with a crane scale rated upto 150kg and knurled aluminium handles.
You can slightly adjust the range of motion by twisting the knob below the scale, we generally find moving this dosen't make much difference so leave it on the default setting.
These require 2 x AAA Batteries which are not included for postage reasons.