86-010-63820914 86-13269988685 QQ:283520556 MSN:langjianyong525626@hotmail.com Email-langjianyong@126.com Troubleshoot hydraulic circuits and isolate faulty components on mobile equipment, machine tools, forklifts, agricultural and industrial tractors and equipment (open or closed) hydraulic systems with capabilities up to 75 GPM at 5,000 PSI. Features: Automatic pressure compensating load valve for increased flow without affecting the pressure settings Temperature flow and RPM readings displayed in metric or English Accurate to within plus or minus 2% of full scale. Tester is protected by a safety disc which ruptures automatically if pressures exceed upper limits Includes: 75 GPM hydraulic circuit tester Two pressure gauges Three 9-volt batteries