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Vivid Racing Gear 
AutoMeter 4397 Pro Wideband Air/Fuel Ratio Gauge
Understanding the precise air/fuel mixture in your engine is crucial for achieving optimal performance and longevity. The AutoMeter 4397 Pro Wideband Gauge stands out in the crowded market of wideband gauges, thanks to its advanced calibration technology. Each time you start your vehicle, this gauge automatically calibrates itself, ensuring consistent accuracy throughout the lifespan of your sensor—no free air calibration required.
This gauge is compatible with a variety of fuel types and offers a customizable display, allowing you to monitor the exact range that matters most to you. Whether you're pushing limits on the track or cruising on the street, the advanced peak recall function and lean warning system keep you informed and safe while you make power. The display automatically dims to suit any lighting condition, providing a clear view at all times.
Included with the gauge are a specially designed O2 sensor and wiring harness, making installation straightforward. With data logging output available for both one-wire and two-wire systems in lambda or AFR, the AutoMeter 4397 Pro Wideband Gauge is not just accurate but also user-friendly, making it the ideal choice for any performance enthusiast.
Key Specifications
Gauge Size: 2-1/16 inches (52.4mm)
AFR Range: 6:1 to 20:1
Type: Ultra-Lite Wideband Air/Fuel Ratio Gauge
Features
- Bezel Color: Brushed Aluminum
- Bezel Style: Super Bezel
- Face Color: Silver
- Lens: Flat Clear
- Lighting Color: Red LED with Red, Yellow, and Green Segments
- Lighting Type: Digital LED
- Movement Type: Digital
- Outer Bezel Diameter: 2.250 inches
- Size: 2.3125 inches
- WARNING CA Proposition 65: Yes - This product can expose you to chemicals known to the State of California to cause cancer. For more information, visit www.p65warnings.ca.gov.
Customer Insights
Many users appreciate how easy the AutoMeter 4397 is to install and operate. Feedback highlights the gauge's clarity and responsiveness, making it a favorite among both daily drivers and track enthusiasts. The ability to monitor air/fuel ratios in real-time has proven invaluable for tuning, ensuring that engines run efficiently and safely.
Fitment Notes
Universal Fitment: This gauge is designed for universal fitment across a wide range of vehicles. However, it's recommended to conduct thorough research to confirm compatibility with your specific vehicle model.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
AutoMeter is an aftermarket company that started in 1957. The company specializes in creating high precision gauges for various automobiles. The company was founded by Vern Westberg and initially poured sand castings in their family’s backyard. Today, Autometer is considered the leading brand when it comes to vehicle instrumentations and is being used by a lot of enthusiasts worldwide.
Experts in their FieldWith more than 60 years in the industry, the company was able to perfect its craft and developed many industry-changing products such as rev control and quick responding tachometers. They also offer an LCD Competiton data acquisition system for those who are more serious when it comes to data monitoring.
State-of-the-art FacilityAutometer has one of the industry’s most advanced manufacturing facilities based in Sycamore, IL USA. This, coupled with an advanced engineering system allows them to create parts that are durable, accurate, and precise. The company is ISO certified so you can be sure that you get quality products consistently.
Autometer has its own High-Performance division that focuses on competition spec and racing electronics and instrumentations. Using their experience, they are able to develop and continuously improve their products and adapt them to the ever-changing automotive technology.
Purchase Autometer at Vivid RacingIf you want to accurately monitor your engine’s vitals, then upgrade your gauges to Autometer. They have been the trusted brand of many enthusiasts and racers worldwide and have proven themselves as the leading brand in the industry. To know more, visit Vivid Racing and check out their list of products that would fit your specific requirement.
Installation Instructions
Click to view the Installation Instructions here
