Autometer Ultra-Lite 52mm Air/Fuel Ratio Pro Plus Digital w/ Peak & Warning Gauge

Knowing the exact air/fuel mixture running through your engine is the most important factor to extracting the highest levels of performance and durability. Not all wideband gauges are created equal. AutoMeter utilizes an advanced calibration method that automatically calibrates your gauge on every startup to assure you of the highest degree of accuracy over the entire lifespan of your sensor (no free air calibration is ever necessary). Compatible with nearly all fuel types, the AutoMeter Pro Wideband has a configurable display to pinpoint the exact range you want to keep an eye on. An advanced peak recall function and lean warning system make sure you’re safely making power, whether on the track or on the street. An automatically dimming display tailors light output for any condition. Data logging output is included for one wire or two wire systems in both lambda or AFR. Our specially designed O2 sensor and wiring harness are included for ease of installation. Quite simply, there isn’t a more accurate or easy to live with wideband gauge available on the market.

Part Type

Air / Fuel Ratio Gauge

• 0-5v data and serial data outputs for ECU, data acquisition unit, or Laptop tuning
• 10:1 to 20:1 AFR range for gasoline applications
• 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system
• Display data in Lambda or numerical A/F ratio
• Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU 4.9 Sensor, 8ft. wiring harness, 304 stainless steel weld-in bung, mounting hardware, and detailed instructions for installation
• Peak recall/memory
• User programmable range for Rich/Stoic/Lean conditions
• User Programmable Warning Function

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Gauge, Ultra-Lite, Air/Fuel Ratio, Pro-Plus, 0-5 Ohm Wideband, Lean-Rich, 2 1/16 in., Digital, Electrical, Each

AutoMeter Ultra-Lite digital gauges are wildly popular in motorsports for several reasons. Their aluminum construction greatly reduces their weight, while their satin anodized aluminum faces, bright numbers and sweeping LEDs make them easy to read. Quality-engineered mechanisms ensure accuracy—and each gauge is affordably priced! Ultra-Lite instruments are available to monitor nearly a dozen vitals under your hood. The gauges are available in a variety of sizes and data ranges. For style, precision, value and more, equip your ride with AutoMeter Ultra-Lite digital dials.