The AFR500 makes true wideband technology with top of the line measurement equipment available to enthusiasts and tuners for the first time. Air fuel ratio offers critical feedback for tuners to alter parameters to achieve maximum power and efficiency from their engine. The AFR500v3 will include the following: Large, bright digital display controller (~3.4in x 2.7in x 1.3in) 7ft wiring harness with sealed connections Bosch LSU 4.9 wideband oxygen sensor (NTK Sensor options available, as well as the Bosch 4.2) Weld in steel exhaust boss & plug Mounting Velcro Comprehensive Installation, troubleshooting & tuning manual 0-5 volt Analog Output Signal 11-28 volt Input Power (24v system capable) Compatibility with most aftermarket ECUs Compatible Fuel Types: Gasoline / Petrol (leaded or unleaded) Alcohol (Methanol) Ethanol (E100, E85, E20, E15, E10, etc) $699.00