The PSH Mechanical Force Gauge is designed a high capacity force gauge with several ranges from 200 lbf up to 500 lbf (300 kgf). The heavy duty metal housing and heavy duty springs will withstand the harsh rugged environment of a manufacturing plant. The highly accurate, matched springs will ensure reliable results and retain their accuracy over long periods. The tare ring allows you to zero the gauge and compensate for measuring attachments and changes in measuring position. The real time/peak hold selector switch enables users to observe transients or capture peaks. This high capacity mechanical force gauge is available in pounds, kilograms and Newtons models. No batteries are needed and the unit is intrinsically safe in hazardous environments.