For use with all 12MM engines such as the Rotax 900 series. For 18MM aviation engines, see p/n 2E and 2EM

Our own differential pressure tester comes complete with on-off safety valve to eliminate hose 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%. Includes 12MM Spark Plug Adapter, 24" pressure hose, and complete instructions. Factory calibrated. Letter of certification available upon request.

Protective form-fitted hard case included. Ats Pro Lifetime warranty