The Sealey VS211 is a fuel injector test device designed to diagnose fuel delivery problems on petrol vehicles fitted with electronic fuel injection systems. This professional diagnostic tool allows mechanics and automotive technicians to test individual injectors with the engine off, helping to pinpoint fuel system faults quickly and accurately. Powered directly from the vehicle's 12-volt battery, the VS211 operates fuel injectors individually to identify a range of common fuel system issues. The device features a pulse timer function that can be used in conjunction with a fuel pressure gauge for comprehensive diagnostic testing, making it an invaluable tool for workshop professionals troubleshooting performance issues. Ideal for diagnosing clogged or leaking fuel injectors, sluggish or sticky injector operation, wiring harness faults, and fuel injector driver signal problems, this tester provides a systematic approach to fuel system diagnostics. Its compact design and straightforward