Comes complete with on-off safety valve to eliminate blowback 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 .060". precision gauges matched to within +/-2%. Includes 18MM Spark Plug Adapter, 24" pressure hose, and complete instructions. Protective form-fitted hard case included. Factory calibrated. Letter of certification available upon request. LIMITED LIFETIME WARRANTY
4 lbs (2Kg) shipping weight.