10 Best Afr Gauge of December 2025

• Interchangeable black and white faceplates included for customizing gauge appearance
• Bosch 4.9 LSU wideband sensor and weld-in bung included PN 30-4110
• No free air sensor calibration required ever. A 2-1/16 inch gauge housing ensures that it will fit in most gauge pods and can be remotely mounted virtually anywhere
• Interchangeable black and silver bezels included. 52mm (2-1/16”) gauge housing
• 0-5V analog output 10-20 AFR range only

AEM

• GlowShift Tinted 7 Series Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Performance Vehicle
• Wideband Air/Fuel Ratio Readings from 10.0 to 20.0 AFR - 2-1/16" (52mm) Gauge with Black Dial, Tinted Lens & Digital Display
• AFR Quality & Values | Rich: 10.0 ~ 12.0 AFR | Optimal: 13.0 ~ 15.0 AFR | Lean: 16.0 ~ 20.0 AFR
• Includes 4.9 LSU Wideband Oxygen Sensor, Weld-In Bung, Control Box, 10' Sensor Harness, 7' Gauge to Control Box Harness, 5' Power Harness, 3' Data Logging Wire, Gauge Visor, Mounting Hardware & Installation Instructions
• GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support

GlowShift

• GlowShift Black 7 Series Dual Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of the Left & Right Banks of Your Performance Vehicle's Engine
• Dual Wideband Air/Fuel Ratio Readings from 10.0 to 20.0 AFR - 2-1/16" (52mm) Gauge with Black Dial, Clear Lens & 2 Digital Displays
• AFR Quality & Values | Rich: 10 ~ 12.9 AFR | Optimal: 13 ~ 17.9 AFR | Lean: 18 ~ 20 AFR
• Includes (2) 4.9 LSU Wideband Oxygen Sensors, (2) Stainless Steel Weld-In Bungs, (2) Mild Steel Weld-In Bungs, (2) Control Boxes, (2) 10' Sensor Harness, 7' Gauge to Control Box & 5' Power Harness Splitter, (2) 3' Data Logging Wires, Gauge Visor, Mounting Hardware & Installation Instructions
• GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support

GlowShift

• GlowShift Tinted 7 Color Series Analog Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Performance Vehicle
• Wideband Air/Fuel Ratio Readings from 10 to 20 AFR - 2-1/16" (52mm) Gauge with Black Dial, Tinted Lens & Illuminated Red Needle
• 7 Solid Color Modes & 2 Color Cycle Modes Allow You to Match Your Factory Dashboard Lights or Add a Custom Style to the Interior of Your Vehicle - Colors Include Blue, Red, Green, Teal, Purple, White & Yellow - Connecting the Dimmer Wire to the Headlight Switch Reduces Brightness of the Gauge by 30% When the Headlights are On
• Includes 4.9 LSU Wideband Oxygen Sensor, Weld-In Bung, Control Box, 10' Sensor Harness, 7' Gauge to Control Box Harness, 5' Power Harness, 3' Data Logging Wire, Gauge Visor, Mounting Hardware & Installation Instructions
• GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support

GlowShift

• 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
• 0-4v data output feed for ECU, data acquisition unit, or Laptop tuning
• Suitable for use with gasoline powered engines
• Digital segment display and LED radial bar graph display
• 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system

Auto Meter

• Faster sensor frequency for faster O2 sensor feedback
• Faster analog output speed helps ensure that your ECU sees changes in air/fuel ratio as they happen
• Enhanced heater control for superior sensor performance in forced induction and other high performance applications
• Bosch LSU 4.9 wideband O2 sensor
• 52mm (2 1/6") diameter gauge body with included interchangeable faceplates and bezels
• Fit type: Universal Fit

Innovate Motorsports

• GlowShift Black 7 Series Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Performance Vehicle
• Wideband Air/Fuel Ratio Readings from 10.0 to 20.0 AFR - 2-1/16" (52mm) Gauge with Black Dial, Clear Lens & Digital Display
• AFR Quality & Values | Rich: 10.0 ~ 12.0 AFR | Optimal: 13.0 ~ 15.0 AFR | Lean: 16.0 ~ 20.0 AFR
• Includes 4.9 LSU Wideband Oxygen Sensor, Weld-In Bung, Control Box, 10' Sensor Harness, 7' Gauge to Control Box Harness, 5' Power Harness, 3' Data Logging Wire, Gauge Visor, Mounting Hardware & Installation Instructions
• GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support

GlowShift

• Accuracy of analog LED type:Every 0.5%,using BAR type to light up.
• Display range:Digital type is from 20.0% to 10.0%;Analog LED type is from 20.0% to 10.0%;Both of digital type and analog LED type will show the maximum or the minimum,if the value out off the display range.
• Warning(Red Light):At start, the voltage is lower than 11.0V,the value of AIR/FUEL is lower than 0.8 or higher than 10BAR(lower than 12 or higher than 120PSI).
• Direct analog:The digital has 20 LED pcs, 10.0%≤Air/Fuel ratio≤12.5%,the LED lights appear green among 6pcs; 13.0%≤ratio≤17.5%, the LED lights appear yellow among 10pcs;18.0%≤ratio≤19.5%, the LED lights appear red among 4pcs.
• Easy installation:Our gauge includes electric wire with necessary mounting and installation hardware,no need other sensor, your existing oxygen sensor can fit it well.

HOTSYSTEM

• The X-Series Wideband UEGO AFR Sensor Controller Gauge (PN 30-0300) features a modern, visually striking faceplate and new seven-segment center display that is 87% larger than the 30-4110 AEM
• The gauge includes a 0-5v and RS232 serial port output for feedback control and data logging, and an AEMnet (CANbus) output for data logging
• X-Digital wideband technology gives these controllers the ability to read and report values that other controllers do not, which can deliver more optimized engine tuning and a safer overall operating condition
• Faster response time improves wideband feedback control, and can provide a safer, more powerful and accurate tune
• When tuning an engine using wide-band AFR feedback control on an inertia dyno, dead time affects the data you are looking at because it is reported in a different operating location than when it actually occurred

AEM

• Fit type: Universal
• Package Dimensions: 7.366 H x 27.94 L x 19.05 W (centimetres)
• Country of Origin : United States
• Package Weight: 0.6 pounds

Innovate Motorsports