FAST® Wireless Air/Fuel Meter Kits

Memphis, TN – The state-of-the-art FAST® Wireless Air/Fuel Meter Kits measure your engine’s air/fuel ratio with precision accuracy, all from the convenience of your smartphone!

FAST® has revolutionized the tuning industry with the most advanced, app-based, wireless air/fuel meters – in both dual and single sensor options. The FAST® Wireless Air/Fuel Meters use an under-hood mounted Bluetooth module, connected to oxygen sensors in one or both of your engine’s exhaust outlets, giving you the full story on the state of your engine’s tune. With the dual sensor unit, you can read both wide-band oxygen sensors individually, or average them together for super accurate readings of the engine’s true air/fuel ratio.

Easy to use with any iOS or Android device, the FAST® Wireless Air/Fuel Meter App includes a simple, built-in data logger that records up to two minutes of air/fuel and RPM data. Fuel calibrations are preloaded for measuring gasoline, all popular ethanol blends, methanol, diesel and more. Advanced features include 0-5 volt output for external data loggers and digital gauges. Additionally, a selectable module output is provided that can be used as an RPM activated window switch, a lean air/fuel ratio safety cut-off or an innovative anti-theft feature that allows you to manually activate/deactivate a vehicle immobilizing relay – a simple way to protect your vehicle from theft!

With features unlike anything else on the market, it’s clear the FAST® Wireless Air/Fuel Meter is the best choice for the serious engine tuner.

About FAST®

In 2001, FAST® was acquired by the COMP Performance Group™ and moved its headquarters to Memphis, TN, to become the popular electronics company that we know today. After more than a decade in the performance aftermarket industry, FAST® is the recognized leader in advanced EFI technology. Now, not only does FAST® offer the components to adapt virtually any engine to fuel injection, it is also an emerging force in the ignition market. With the latest in easy-to-use electrical components, the experts at FAST® have everything that you need to make high-tech horsepower. 

Additional information about FAST® and its products can be found at or at 1.877.334.8355 M-F 7am-8pm CST. Also visit us on Facebook at, on Twitter at or on YouTube at