WEGO III is a fully sealed stand-alone unit with built-in data logging intended for motorcycle applications. Complete air/fuel ratio display system with built-in data logging. Includes Bosch LSU4.2 5-wire wide-band oxygen sensor, 18 x 1.5mm weld nut for mounting sensor on exhaust pipe and software on CDROM. Versatile tuning aid for all carbureted and fuel injected engines; displays air/fuel ratio (AFR) and logs over 2 hours data including AFR, engine RPM and a spare 0 to 5-Volt analog input for sensors such as throttle position or manifold pressure. Can be used for on-road or dyno testing. Suitable for automotive, motorcycle and other small engine applications.