This tester comes complete with on-off safety valve to eliminate pressure when disconnecting from the cylinder. Can be used to check intake or exhaust valves, cracked or worn rings, defective cylinders, worn bushings, etc. Specifications: Orifice size is .040". precision gauges matched to within +/-2%. 18MM plug adapter. 24" pressure hose.
Includes hose and spark plug adapter. Factory calibrated. Letter of certification available upon request.
Note: For use with engines of 5" Bore Diameter or smaller per AC43.13 REV 1B.