This diesel injector tester comes with a heavy 0 to 600 BAR / 0 to 8000 PSI dual scale gauge, which helps stabilize vibrations in the needle, providing more accuracy in results and increase the life of the gauge. | Vevor | | 400Bar 6000PSI Diesel Fuel Injector Tester Diesel Injector Nozzle Tester with Dual Scale | Black | Best Buy