Product Description Test C. I. S. (Continuous Injection System) found on most late model European cars and Volkswagen models assembled in the U. S. These vehicles are equipped with Bosch C. I. S. K-Jetronic Fuel Injection Systems. This is an in-line pressure tester which indicates problem sources - control pressure regulator, fuel distributors or other specific fuel injection components that may require replacing. From the Manufacturer Test C.I.S. (Continuous Injection System) found on most late model European cars and Volkswagen models assembled in the U.S. These vehicles are equipped with Bosch C.I.S. K-Jetronic Fuel Injection Systems. This is an in-line pressure tester which indicates problem sources - control pressure regulator, fuel distributors or other specific fuel injection components that may require replacing. Tests C.I.S. Non-Electronic with metric threads, C.I.S./Lamboda Electronic with metric threads and C.I.S. E-Electronic with metric threads. Will not test other Bosch fuel injection systems. Gage measures 2-1/2-Inch diameter and has dual scale: 100 PSI and 7 BAR. Gage has hang-up hook. Supplied with all adapters, adapter application chart, hook-up and parts schematic drawing, complete instructions and sturdy molded storage case.