9pcs Cylinder Compression Tester Kit and Spark Plug Tester, Universal Car and Motorcycle Engine Testing Tools for Automotive Pressure Gauge

Complete Kit for Car Testing: the 9pcs cylinder testing kit comes with 8 x compression tool and 1 x spark plug tester, total package includes 1 x SPARK PLUG TESTER, 1 x 300PSI DUAL UNITS GAUGE, 1 x STRAIGHT RUBBER CONE ADAPTER, 1 x CURVED RUBBER CONE ADAPTER, 4 x BRASS ADAPTERS, and 1 x 14-inch EXTENSION HOSE, complete package allows you to test the cars condition easily by yourself
Extra Value with Spark Plug Tester: the spark tester is a must have diagnostic tool for engine which has a spark plug, you can diagnose ignition or engine outboard motor issues and a fault in the fuel delivery system quickly and easily
Easy and Safe to Use: first, remove the fuel pump and fuel-injection fuses, disconnect the main wire to the coil and spark plug wires, and remove spark plugs; And then start the threaded end of the compression gauge in a spark plug hole by hand; Last, turn the ignition on, depress the throttle, and crank the engine four revolutions to get accurate data