It is used to detect the pressure inside the engine cylinder, and then analyze and determine the causes of malfunctions.

2.5" dual - scale pressure gauge (0 - 300psi, 2000kpa)

13" long rubber - steel braided tube, equipped with a commonly used 18mm connector

6" long conical rubber connector suitable for all spark plug holes

The pressure gauge set is designed with a pressure reducing valve, which is safe and convenient.