WEGO III Single and Dual Channel Wide-Band Air/Fuel Ratio (AFT) Tuning Aids (Including Units With Built-in Data Logging).  Includes WEGO III unit with LCD display, data logging, 48 standard length harness, Bosch LSU 4.2 oxygen sensor, 18 x 1.5mm weld nut for exhaust pipe and software and CD-Rom.

The WEGO III is a complete air/fuel ratio (AFR) metering system with built-in data logging. The system is a versatile tuning aid and diagnostic Harley Performance Part tool for all carbureted and fuel injected gasoline powered engines. The WEGO III unit displays AFR and can log over 2 hours data including AFR, engine RPM, and a spare 0-5V analog input for sensors such as throttle position or manifold pressure. The ultra-bright daylight readable blue LED display features automatic dimming under low light conditions. The compact size and wide supply voltage range also allow operation from small rechargeable batteries in a broad range of applications.

The system uses a low cost Bosch LSU 4.2 5-wire wide-band oxygen sensor. By utilizing miniature surface mount electronics technology, digital signal processing techniques, and a switching power supply nfor the sensor heater, the WEGO III provides the same level of accuracy as lab systems costing thousands of dollars.