• Quickly diagnoses internal engine problems like bad rings, valves and leaking head gaskets
• Leak-down tests are more accurate than standard compression tests for engine diagnostics
• Pressurized air is applied to each cylinder then monitored for a level of leakage
• Dual 2-1/2 inch gauges have chrome bezels and rugged protective outer boots
• Compression gauge reads 0-140psi and 0-10 bar. Leakage gauge reads 0-100 percent
• Pressure regulated manifold, with quick couplers, 24 inch long 14mm flex hose
• Also includes 10mm, 12mm and 18mm thread adapters for most gas engine applications
• Rugged, blow molded storage case with removable lid keeps components organized
(California Prop 65)