FAST™, the recognized leader in EFI technology, has developed an easy to use Dual Sensor Air/Fuel Meter that delivers the complete story about your engine’s tuning. Tuners now have the power to read two wide-band O2 sensors individually or average them together for super accurate readings of the engine’s true air/fuel ratio.

Beyond the innovative dual sensor capability, the new FAST™ Dual Sensor Air/Fuel Meter delivers all the features that tuners have come to expect, plus several enhanced capabilities, in the easiest to use format of any digital air/fuel meter ever developed. One such feature is built-in data logging capability that plays back recorded information on a lighted, full graphical display screen, unlike other units that require downloading to a computer. Additional standard features include outputs for external data loggers, digital gauges, as well as a narrow-band simulator function that allows you to feed your engine’s computer a factory signal while using the wide-band sensor for air/fuel measurement.

Stop guessing and start tuning for additional horsepower and reliability with the new FAST™ Dual Sensor Air/Fuel Meter.

• Dual wide-band O2 sensors measure air/fuel ratio in both engine banks simultaneously or average them together for precise tuning of carburetor jetting or EFI profiles

• Features include built-in data logger with on-screen playback (no laptop required), outputs for external data loggers & digital gauges and a narrow-band simulator function

• Affordably priced single sensor version can be easily upgraded to dual sensor unit; features field-flashable capability for downloading future updates

• Built-in calibration and quick start-up deliver A/F readings in under a minute; kit comes complete with everything needed

• Lighted, full graphical display makes it the easiest to use unit available; perfect for race, street and dyno-cell applications