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Quick Specs

  • Size:2-1/16" (52.4mm)
  • Type:Digital
  • Range:6:1-20:1 AFR
  • Lighting:Digital LED
  • Instructions: Download PDF


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.
Feature Points
  • 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
  • 0-5v data and serial data outputs for ECU, data acquisition unit, or Laptop tuning
  • User programmable range for Rich/Stoic/Lean conditions
  • Peak recall/memory
  • 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
  • User Programmable Warning Function
  • Display data in Lambda or numerical A/F ratio
Ships With
  • Includes Sending Unit: 5316
  • M18X1.5 Fitting and Plug
  • Wire Harness: ST265317
  • 2230
California Residents: Prop 65 WARNING prop65 Cancer, Birth Defects and Reproductive Harm



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What is the difference between the pro version of this gauge and the pro plus?

Asked by: jgonz
The pro uses the 4.2 LSU Bosch sensor while the Pro Plus uses the 4.9 LSU Bosch sensor.
Answered by: Thomas From AutoMeter
Date published: 2023-02-24

Will this gauge work in my 1969 mustang with a Holley carburetor and long tube headers ?

Asked by: supershifter2
This is a universal unit so as long as the sender, harness, and gauge are installed properly it will work.
Answered by: Steve from AutoMeter
Date published: 2022-06-15

Can I buy a replacement O2 sensor?

Asked by: Realdj
Yes, the 4.9 Bosch Sensor is part number 5316.
Answered by: Thomas From AutoMeter
Date published: 2022-03-21

Hi is this gauge the Digital Stepper Motor type and do you ship to Australia please.

Asked by: Paul R
Thank you for your question. This is a Digital gauge. We do ship to Australia.
Answered by: Natalia from AutoMeter
Date published: 2021-03-23

Good afternoon my question is how far away from another o2 sensor does the autometer sensor need to be so that one doesn't disrupt the other sensor readings? I am adding this sensor to my car for data logging and quick refence.

Asked by: GolfR
Thank you for your question. You will want the sensor at a different clocked position. If you cannot do that then the sensor does need to be slightly clocked different and roughly 6" downstream from the other sensor.
Answered by: Natalia from AutoMeter
Date published: 2021-01-13

I have the cobalt wideband afr and boost gauge that the numerical LED went bad. Can I buy a replacement gauge only?

Asked by: EvoinFL
Thank you for your question. Unfortunately, you cannot. I would recommend sending the unit to us for evaluation so we can see if we can repair the unit.
Answered by: Natalia from AutoMeter
Date published: 2023-06-03

I know this gauge has the ability to auto dim, but is there an option to have the unit dimmed via a hard wired illumination connection? i plan to use this in conjunction with the 6197 which appears to have this feature

Asked by: scottyb
Thank you for your inquiry. This gauge cannot be connected to a lighting dimmer.
Answered by: Jim from AutoMeter
Date published: 2020-03-27

Just wondering if this can have the black outter surround like the blacked out series of this gauge? Thanks

Asked by: Anonymous
Thank you for your question. No, this is not available with an all black background, and neither is the rest of the series. The images that show the Cobalt series with a black bezel and casing are showing what the gauges look like at night/in the dark.
Answered by: Zach from AutoMeter
Date published: 2019-04-18
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