The 300 lb. (135 kg) digital hand dynamometer uses the same hydraulic system but has the added advantage of an LCD display.
Features an electronic zero calibration system, 2 AAA batteries, a low battery light, and an automatic shut off. Push button console includes a button to zero the last maximum reading stored in memory, a maximum button to display the highest reading since the last press of the max. clear button, and a lb./kg. toggle.