The Magnum M10WIN Hydraulic Calibration Hand Pump with Winchester Auto Ranging Digital Gauge utilizes a fully adjustable stroke control to allow for quick priming, easy pumping, and fast pressure generation up to 10,000 psi (700 bar). The ergonomically engineered handles provide extra comfort, while the patented triple filtration system ensures pump operation in spite of dirty conditions. The shatterproof reservoir and stainless steel construction guarantee leak free operation. The pump has over-sized check valves to provide smooth controlled operation. The included Winchester Model 1 Auto Ranging Digital Gauge uses multiple piezoresistive sensors to read the entire range using just one gauge, replacing the need to use many gauges of different ranges to achieve and maintain high accuracy.