SKU: ATM4479
UPC: 046074044793
MPN: 4479
The AutoMeter 2-5/8 inch Ultra-Lite Wideband Air/Fuel Ratio Gauge is a precision analog instrument designed for engine tuning and performance diagnostics. This wideband AFR gauge measures air-fuel ratio across the critical 8:1 to 18:1 range, enabling real-time monitoring of engine combustion efficiency during dyno testing, street tuning, and calibration work. The full-sweep analog display and silver face provide clear, at-a-glance readability even in high-vibration environments.
Built to ultra-lightweight specifications, this electric wideband air/fuel gauge minimizes weight penalty on performance vehicles where every pound matters. The 2-5/8-inch diameter fits standard gauge pods and custom dash applications. Full-sweep needle response ensures rapid feedback during acceleration events and load transitions. The 8:1 to 18:1 AFR measurement range covers both rich (fuel-heavy) tuning for maximum power and lean (fuel-efficient) cruise configurations, making it essential for carburetor tuning, EFI calibration, and engine management validation across gasoline performance platforms.
This gauge serves engine builders, performance technicians, and serious automotive enthusiasts who demand precision feedback during tuning sessions. Wideband sensors detect combustion mixture balance far more accurately than narrow-band oxygen sensors, making this instrument invaluable for dyno work, turbo calibration, and fuel injection mapping. The analog format eliminates display lag and provides tactile confirmation of mixture changes without relying on electronic displays or data logging software.
AutoMeter's reputation for gauge accuracy and durability is built on automotive performance heritage spanning decades. This wideband AFR gauge is constructed to withstand underhood temperatures and vibration while maintaining calibration consistency across repeated tuning cycles. The silver faceplate and analog needle design reflect AutoMeter's focus on readable instrumentation under varying light conditions and at a glance during dynamic engine testing.
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