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Quick Specs

  • Size:2-1/16" (52.4mm)
  • Type:Digital Stepper Motor
  • Range:8:1-18:1 AFR
  • Lighting:LED
  • Instructions: Download PDF


Mirroring the functions of AutoMeter’s Street Wideband, the Digital Stepper Motor Wideband provides the most important functions necessary to make sure you’re extracting the most power possible, safely. An analog needle display integrates seamlessly with other gauges and easily illustrates rate of change as well as the actual value. Our advanced auto calibration system 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). Designed for gasoline applications, this wideband gauge provides the same degree of accuracy and response as the Pro version, but at a reduced cost. Data logging output is included for one wire or two wire systems. Our specially designed O2 sensor and wiring harness are included for ease of installation.
Feature Points
  • Modern white LED through-the-dial lighting provides clear visibility during nighttime use
  • Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft. wiring harness, 304 stainless steel weld-in bung, mounting hardware, and detailed instructions for installation
  • AutoMeter’s race proven digital stepper motor electric instruments provide unmatched accuracy which is further increased by utilizing a self calibration sequence during power up
  • Display range of 8:1 to 18:1
  • Suitable for use with gasoline powered engines
  • 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system
Ships With
  • Includes Sending Unit: 2243
  • M18X1.5 Fitting and Plug
  • Wire Harness: 5298
  • 2230
California Residents: Prop 65 WARNING prop65 Cancer, Birth Defects and Reproductive Harm


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Is there a harness for 2 sensors because I have dual exhaust

Asked by: 793504
Thank you for your question. Unfortunately this gauge does not have a dual o2 sensor option.
Answered by: Alex at AutoMeter
Date published: 2024-05-03

Will this kit work on a firecore dist setup with a Mopar electronic box? is it a complete kit with cup? use with leaded gas?

Asked by: R.L.
Fouling and/or permanent damage to the oxygen sensor over time will result if used with any of the following: • Leaded gasoline and fuel additives containing lead • 2 cycle gasoline (gas/oil mix) • Diesel Fuel • Nitromethane • Excessively rich mixtures
Answered by: Steve from AutoMeter
Date published: 2023-11-20

What options do i have to change the backlight color? the rest of my gauges are green and would prefer to have this match.

Asked by: Anonymous
This gauge has internal surface mount LED lighting. It is white lighting and cannot be changed.
Answered by: Jim from AutoMeter
Date published: 2023-10-23

Do you have an O2 sensor compatible with Leaded Fuel for this gauge?

Asked by: FattireFbody
We do not.
Answered by: Thomas From AutoMeter
Date published: 2023-07-21

Is this gauge water resistant to put on a motorcycle?

Asked by: Purpug1515
Thank you for your question. It is designed to mount inside the passenger compartment in a car and is not waterproof.
Answered by: Natalia from AutoMeter
Date published: 2021-02-15

What is the thread size for the o2 sensor?

Asked by: Clint
Thank you for your question. The O2 sensor is a M18x1.25.
Answered by: Natalia from AutoMeter
Date published: 2024-05-21

The 8 foot cable that came with the 3670 AFR is to short for my application. and the 25' will be way to long. is there a 12 foot option? can I cut down a 25' and solder it back together?

Asked by: Uncle Marty
Hello! We offer a 25' harness and do not recommend attempting to modify or increase/decrease the harness length in any way. You could coil up the extra length. Model #2670 would use the 5252 harness for a 25' option. There is also a 5253 for the Pro Series.
Answered by: Natalia from AutoMeter
Date published: 2023-06-03

I have the pro Comp wide band gauge and sensor and was wondering if this unit has an anolog output that can be connected to a Haltech PS2000 ecu? Also can you tell me what the AFR range these gauges operate between I.e 10 and 16 

Asked by: Paul K
Hi Steve and thank you for the answer. So to clarify for the analogue signal that the Haltech requires I should use the blue and black wires?
Answered by: Paul K
Date published: 2024-01-16
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