Features: It effectively tests the front pressure of the converters, aiding in identifying potential exhaust blockages. With a measurement ranges of -0.1 to 0MPa, this tool provide fast, accurate, and time-savings testing capabilities. Its precisions and efficiency make it practical for all your testing needs. With M14x15 installation thread, this tool boasts a rational structure for simple operating and convenient use. It enables quick and accurate testing procedures. Testers equipped with this tool can efficiently carry out testing tasks, allowing for a better understanding of important car information related to exhaust performances. This automotive exhaust backpressure tester is highly professional, catering to a wide ranges of vehicle applications in the automotive market. It is a practical tool for assessing exhaust Systems performances. Specifications: Material:ABS Measurement ranges: -0.1-0MPa Product type: Vacuum gauges Dials diameter: 60mm/2.36'' Installation thread: M14x15 Product accuracy: 2.5 Hose Length:Approx.58cm/22.83'' Package Includes: 1Piece Vacuum Pressure Gauges note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.