The Vevor diesel engine compression tester kit is designed to help diagnose cylinder pressure and overall engine condition in diesel vehicles and equipment. It features a large dual-scale gauge with a 0-1000 psi and 0-70 bar reading range for clear, accurate measurements. The 18-pc kit includes multiple specialized adapters for broad compatibility with trucks, tractors, motorcycles, and other diesel applications. A 19.6" hose and quick-connect components make testing easier in different positions. Durable brass fittings and a high-quality rubber hose are built for long-term use.