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Quick Specs

  • Size:2-1/16" (52.4mm)
  • Type:Digital Stepper Motor
  • Range:8:1-18:1 AFR
  • Lighting:Incandescent
  • 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
  • Traditional incandescent lighting illuminates around the perimeter of the dial
  • Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft. wiring harness, 304 stainless steel weld-in bung, bulb and socket assembly, red and green bulb covers, 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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The RED & BROWN power wires....If I want to place a toggle to activate/deactivate this gauge, leaving only the illumination running with dash on. Which wire(s) do I run through my switch? I don't see a need to heat the sensor when I don't need the gauge.

Asked by: Sixgun
The red wire is your 12v Key on Power to power up the gauge. The brown wire is an optional wire that is used when the car drops below 12.5 volts while it is running. What is does is bypasses the heating process (bounce between 8 and 9) and allows the gauge to start its readings immediately. So in this case, if you are just trying to power up the gauge, you would use the red wire. Please refer to for more information.
Answered by: Thomas From AutoMeter
Date published: 2024-03-04

Gibt es diese auch mit einen Schwarzen Außenring Versand nach Austria möglich ? Are these also available with a black outer ring Shipping to Austria possible?

Asked by: Gerald M
Please contact our customer service for more information.
Answered by: Thomas From AutoMeter
Date published: 2022-04-06

Is it possible to use this gauge with E85 fuel, based on E85 requiring a Stoich ARF recommended rate of 9.8, this does not allow much range for the gauge to operate in, or is it possible to adjust the band or scale within the gauge to support running E85

Asked by: SLE 383
Thank you for your question. This can be used with E85 fuel.
Answered by: Natalia from AutoMeter
Date published: 2021-02-02

Can I mount this guage in the engine compartment? What is the environmental temperature range in which it can be safely operated?

Asked by: WhyDoIneedaNickname
Hi, This gauge is not designed to be mounted in the engine bay. It is designed to operate in the passenger compartment of a car, where it is exposed to temperatures below freezing to 120 degrees F. Thanks, Jim
Answered by: Jim from AutoMeter
Date published: 2020-05-15

Hi, Iff using E85, will this gauge show the true  Air/fuel ratio or will it just show the equivalent stoich A/F for gasoline?

Asked by: JKSR

Are these made in antique beige?

Asked by: Joel66
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