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AEM Universal Wideband Failsafe Gauge (Air/Fuel Ratios and Manifold Pressure)

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Your Price: $325.79
Retail Price:$452.49
Your Savings:$126.70(28%)
AEM Universal Wideband Failsafe Gauge (Air/Fuel Ratios and Manifold Pressure)
Part Number: 30-4900
Availability: In Stock Free Shipping

AEM's Wideband Failsafe Gauge provides the ability to accurately tune AFR, while actively protecting your engine by constantly monitoring AFR curves and activating a user-defined failsafe strategy if it runs lean.

The Wideband Failsafe Gauge is a Universal Exhaust Gas Oxygen (UEGO—“you-way-go”) controller with an internal boost sensor, an internal data logger and a full color Organic Light Emitting Diode (OLED) display. It includes technology to activate a failsafe strategy in the event AFR falls outside of a user-defined operating window. If the AFR falls outside of the set operating window, the Wideband FAILSAFE Gauge triggers a user defined output function that can save an engine from catastrophic damage.

This gauge is a must have for all tuned performance engines, either forced induction or naturally aspirated, fuel injected or carbureted. Any high performance vehicle owners who want a highly accurate AFR tuning tool with logging and a protection strategy that can save an engine from catastrophic failure will want this Failsafe device.


The software's intuitive Gauge Configuration tool makes setting up the faceplate configuration a snap. The software also simplifies set up of the AFR safe operation window and alarm trigger

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