When a modern, EFI vehicle isn't running correctly, it can be difficult to diagnose the problem. Whilst you may be able to replicate the fault, sometimes the difference between a failing crankshaft position sensor and a faulty ignitor chip may be very difficult to differentiate. In other instances, the vehicle may be perceived to operate correctly, however an illuminated 'check engine' light on the dashboard may raise concerns. Take the guessing out of the equation with a ToolPRO Diagnostic Scanner & Battery Tester. Suitable for use with most OBD2 compliant vehicles, this handy digital tool reads the vehicle body control modules for faults and incorrect readings to determine the problem. Features include the ability to display live data, such as O2 sensor readings, RPM, coolant temperature, vehicle speed and many more, a multi-lingual menu and the ability to print completed diagnostic reports by simply connecting to a computer. As vehicles become more technologically advanced, a tool like the ToolPRO Diagnostic Scanner & Battery Tester is an invaluable addition to your toolbox. This handy little unit also doubles as a battery tester, allowing you to perform charging and cranking tests to help isolate fault areas.