PMD Products 16pc Diesel Engine Compression Pressure Tester Gauge Kit for use with Audi Mercedes Benz Ford GM Landrover Checks diesel engine compression under cranking conditions Small profile, quick coupling adapters: for speed and security 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 KG/cm2 Compares to Sealey VSE204