-Comprehensive test kit: for both direct and indirect diesel injected cars engine. -Simple and easy to use. -Checks engine compression under cranking conditions. -Small profile, quick coupling adapters: for speed and security. -Built-in pressure relief valve: enables repeat tests without dismantling. -Flexible hose (355 mm) gives access to restricted plug and injector ports. -Dual scale 80 mm diameter Gauge 0 - 1000 Lb/In and 0 - 70 bar.