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Vivid Racing Gear 
AutoMeter Pro Wideband Air/Fuel Ratio Gauge (Model 3878)
Understanding the air/fuel mixture in your engine is crucial for achieving optimal performance and longevity. The AutoMeter Pro Wideband Gauge stands out in its class, thanks to an advanced calibration method that ensures accuracy from the moment you start your vehicle. Say goodbye to tedious free air calibrations; this gauge automatically calibrates every time you turn on the ignition.
Compatible with a wide range of fuel types, the Pro Wideband Gauge features a configurable display that allows you to monitor the precise air/fuel ratio (AFR) you need. Whether you're on the track or navigating city streets, the advanced peak recall function and lean warning system keep you informed, ensuring you’re safely making power. The display automatically dims to suit any lighting condition, making it easy to read at a glance.
Installation is a breeze with the included specially designed O2 sensor and wiring harness. With data logging output available for both one-wire and two-wire systems, you can track your performance in lambda or AFR. Simply put, this is one of the most accurate and user-friendly wideband gauges available today.
Key Specifications
Gauge Size: 2-1/16 in. (52.4mm)
AFR Range: 6:1 to 20:1
Features
- Bezel Color: Bright Anodized
- Bezel Style: Super Bezel
- Face Color: Black
- Gauge Size: 52.4mm
- Gauge Type: Wideband Air/Fuel Ratio (AFR)
- Hole Size: 52.4mm
- Lens: Flat Clear
- Lighting Color: Green LED/Red Yellow Green Segments
- Lighting Type: Digital LED
- Movement Type: Digital
- Outer Bezel Diameter: 2.250 in.
- Pointer Color: N/A
- Size: 2.3125 in.
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: This product can expose you to chemicals; which are known to the State of California to cause cancer. For more information; visit www.p65warnings.ca.gov.
Notes:
Universal Fitment: This gauge is designed to be universally compatible with various vehicles. It's recommended to conduct thorough research to ensure it fits your specific application.
Customer Insights
Users appreciate the gauge's ease of installation and the clarity of its display, even in bright sunlight. Many have noted how the peak recall feature has helped them optimize their tuning, making it a favorite among both street and track enthusiasts.
Proposition 65
⚠ 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.
Auto Meter warrants to the consumer that this product will be free from defects in materials and workmanship for a period of twelve (12) months from the date of the original purchase. Products that fail within this 12 month warranty period will be repaired or replaced at the manufacturer's option to the consumer, when determined by the manufacturer that the product failed because of defects in material or workmanship. This warranty is limited to the repair or replacement of parts in the instrument and the necessary labor done by the manufacturer to affect the repair or replacement of the instrument. In no event shall this warranty exceed the original purchase price of the instrument, nor shall the manufacturer be responsible for special, incidental or consequential damages or costs incurred due to failure of this product. Warranty claims to the manufacturer must be transportation prepaid and accompanied with dated proof of purchase. This warranty applies only to the original purchaser of product and is non-transferable. All implied warranties shall be limited in duration to the said 12 month warranty period. Breaking the meter seal, improper use or installation, accident, water damage, abuse, unauthorized repairs or alterations voids this warranty. The manufacturer disclaims any liability for consequential damages due to breach of any written or implied warranty on all products made by the manufacturer.
Installation Instructions
Click to view the Installation Instructions here
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