The 300 lb. (135 kg) digital hand dynamometer uses the same hydraulic system as traditional dynamometers 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, clear button, and a lb./kg. toggle. Comes in protective carrying case. 2 year warranty. Body color is blue.