- Measures the ability of an engine cylinder to hold compressed air using shop air pressure; supplements a compression tester
- Includes: precision regulator, an M14 standard reach adapter on a 26" hose assembly and an M14 long reach solid adapter
- M68 special gauge has one multicolored band for measuring low, moderate and high leakage, and a scale range from 0-100%
- Second M68 gauge has a dual scale dial with ranges from 0-100 PSI and 0-7 bar, which allows the Technician to monitor input air-line pressure.
