Wireless Air/Fuel Meter Kit (Single Sensor)

The revolutionary FAST® Wireless Air/Fuel Meter Kit (w/single sensor) allows you to measure your engine’s air/fuel ratio with precision accuracy, all from the convenience of your smartphone!  It's super easy to use.  Features include: live data logging for up to 2 minutes, an RPM activated window switch, an A/F safety cut-off and a neat anti-theft feature that allows you to protect your vehicle from theft.  More...

Double sensor kit also available.