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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
  • 2243
  • M18X1.5 Fitting and Plug
  • 2230
California Residents: Prop 65 WARNING prop65 Cancer, Birth Defects and Reproductive Harm


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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: 2021-01-12

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: 2020-10-27

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: 2020-08-15

Is it an option to get this with a chrome ring ? I have the designer series and would like to have something close to a match 

Asked by: Aron
You can get this but there is an upcharge to do this. Please give us a call at 866-248-6357 as the order would need to be placed over the phone.
Answered by: Steve from AutoMeter
Date published: 2020-09-25

what O2 sensor do i need for this?

Asked by: 2006GREY
Thank you for your question. This gauge uses our sensor #2243.
Answered by: Zach from AutoMeter
Date published: 2020-09-25

Could i have this sent with a black ring around the face instead of chrome?

Asked by: Hutch
Thank you for your question. You will have to contact our support team regarding custom orders or customization to any gauges. You can reach them at 815.895.8141 or you can send a contact request form here:
Answered by: Zach from AutoMeter
Date published: 2020-04-04

i would replace one by digital version, what is your model direct compatible with harness and sensor.

Asked by: iceman
Thank you for reaching out to us. I apologize as I don't know if I'm fully understanding your question, but the 3670 Analog Wideband will share the same harness and sensor as our Street Series Wideband, like model 3379. They would each be interchangable, but each would only be sold as a complete kit with harness and sensor. If that didn't quite answer your question, please reach out to us by email here with some additional details:
Answered by: Matt from AutoMeter
Date published: 2020-09-25
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