The HS706 Hydraulic High Pressure Comparison Pump generates pressure up to 2500 bar to calibrate high-pressure instruments against a standard gauge. It has a hand pump that can quickly pressurize the entire system, and a booster pump that helps users to calibrate high-pressure points. The shut-off valve is closed during pre-pressurization to 250 bar to achieve high-pressure ranges. The lead screw allows for precise adjustment of the pressure values. A specially designed transparent oil cup shows the level of the working medium. The HS706 is widely used to calibrate pressure gauges in laboratories.