Review on Professional Automotive Compression Tester Kit - Bravex 8PCS Petrol Engine Cylinder Compression Tester Gauge for Cars, Trucks, SUVs, and Motorcycles by Dwayne Calhoun

This is a handy item. It comes in a durable plastic storage case that helps keep all parts organized. I use it to check compression in my various small engines (mowers, compact excavators) and for the in-line V6 engine in my boat. I can't compare this to any other sensor so I can't vouch. for accuracy. It measures pressure in many different ways on a manometer - the PSI I use, plus imperial "bar" and kg/cm². It has solid brass adapters with o-rings that fit most spark plug terminals. He's always there when I need him and I'm glad I have him.