This Petrol Engine Compression Tester Kit from AB_Tools is an essential tool for testing the compression of petrol engines while they are running. It is suitable for most petrol engine cars and light commercials, and can be used on engines with deep-seated plug ports. The kit comes with a built-in pressure relief valve that enables repeat tests without dismantling the engine. The package dimensions of this kit are 29cm x 8cm x 38cm, with a weight of 1909g. The manufacturer part number is AN146, and the manufacturer is AB_Tools. This kit is perfect for those in the industrial automation & motion controls industry, as well as other automation equipment fields. It is a must-have for anyone in need of a reliable and efficient way to test engine compression.