Lang Cylinder Leakage Tester With 2 Gauges – 35 Psi Description: Lang cylinder leakage tester with 2 gauges – 35 PSI measures the ability of an engine cylinder to hold compressed air using shop air pressure and supplements a compression tester. The Lang cylinder leakage tester has a precision regulator, an M14 standard reach adapter on a 26” hose assembly and an M14 long reach solid adapter. The The Lang cylinder leakage tester features a 2 1/2” special gauge has one multicolored band for measuring low, moderate and high leakage, and a scale range from 0-100%. The second gauge is 2 1/2” and has a dual scale dial PSI and bar, which allows the technician to monitor input air-line pressure.