Now that you are here, you must be looking for the best air fuel ratio gauge! If you aren’t for it, you shall use our search and look for the topic you are interested in. As this piece is a lengthy one and covers a few more aspects other than the best list, they are the best air fuel ratio gauge brands in United States of America and a buyer’s guide for making an informed buying decision.
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Best air fuel ratio gauge in 2021
1. AEM (30-4110) UEGO Air/Fuel Ratio Gauge -Automotive
By AEM
More Pictures- 52mm (2-1/16”) gauge housing
- Interchangeable black and silver bezels included
- 0-5V analog output 10-20 AFR range only
- Bosch 4.9 LSU wideband sensor and weld-in bung included PN 30-4110
- A 2-1/16 inch gauge housing ensures that it will fit in most gauge pods and can be remotely mounted virtually anywhere
- No free air sensor calibration required ever
- Interchangeable black and white faceplates included for customizing gauge appearance
2. HOTSYSTEM Universal Electronic Air/Fuel Ratio Monitor Meter Gauge Blue Digital LED 2inches 52mm for Car Vehicle Automotive -Automotive
By HOTSYSTEM
- 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.
- Accuracy of analog LED type:Every 0.5%,using BAR type to light up.
- 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).
- 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.
- 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.
3. Auto Meter 4379 Ultra-Lite Wide Band Air Fuel Ratio Kit,2.3125 in. -Automotive
By Auto Meter
- 0-4v data output feed for ECU, data acquisition unit, or Laptop tuning
- Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft
- 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system
- Digital segment display and LED radial bar graph display
- wiring harness, 304 stainless steel weld-in bung, mounting hardware, and detailed instructions for installation
- Suitable for use with gasoline powered engines
4. AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge -Automotive
By AEM
- Faster response time improves wideband feedback control, and can provide a safer, more powerful and accurate tune
- 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
- 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
- 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
- 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
5. Auto Meter 4375 Ultra-Lite Electric Air Fuel Ratio Gauge -Automotive
By Auto Meter
- Will not work with wideband O2 sensors (0-5V) – please check your specific application before purchase
- May require model 2244 if the vehicle does not have a factory narrowband primary O2 sensor
- Features LED radial bar graph display (gauge does not have provision for backlight)
- Compatible with factory narrowband O2 sensors (0-1V)
6. Equus 8366 2″ Air/Fuel Ratio Gauge, White with Aluminum Bezel -Automotive
By Equus
- Color LEDs provide a quick visual display of air/fuel ratio
- Dual display offers independent or dual left/right bank vs
- Connect to oxygen sensor and determine whether the engine is running rich or lean for maximum performance efficiency
- inline readings
- Aluminum bezel is lightweight and optimizes appearance
- Rear twist-on ring mount design makes mounting simple
7. HOTSYSTEM 7 Color Air/Fuel Ratio AFR Gauge Kit Narrowband Pointer & LED Digital Readouts 2-1/16″ 52mm Black Dial for Car Truck -Automotive
By HOTSYSTEM
- Air/Fuel Ratio Gauge Monitoring car’s air/fuel ratio lean-optimal-rich(from 10.0 to 20.0),so you can change air to fuel ratio to maximized power and engine performance, reduced emissions, and higher fuel economy.
- Note: They are only accurate at sea level
- Display Feature: An pointer gauge with an illuminated red needle and blue LED display,7 Solid Color Settings for easier night driving.
- 2 1/16 Inches (52mm) black face gauge, One Year Limited Warranty.
- Easy Installation: Comes with 1.94ft Power Wire and installation instructions,make the install process quick and easy.
- IF you have any product or installation issue,please contact us, we will offer a good solution within 24hours.
8. GlowShift Tinted 7 Color Digital Wideband Air / Fuel Ratio AFR Gauge Kit – Includes Oxygen Sensor, Data Logging Output & Weld-in Bung – Smoked Lens – Multi-Color LED Display – 2-1/16″ 52mm -Gauge Sets
By GlowShift
- 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 Tinted 7 Color Series Digital Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Gasoline or E85 FlexFuel Performance Vehicle
- Gasoline Wideband Air/Fuel Ratio Readings from 10.00 to 20.00 AFR – E85 Wideband Air/Fuel Ratio Readings from 6.00 to 12.00 AFR- 2-1/16″ (52mm) Gauge with Black Dial, Tinted Lens & 7 Color Digital Display
- 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
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
9. GlowShift Black 7 Color Digital Wideband Air / Fuel Ratio AFR Gauge Kit – Includes Oxygen Sensor, Data Logging Output & Weld-in Bung – Multi-Color LED Display – Clear Lens – 2-1/16″ 52mm -Gauge Sets
By GlowShift
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- GlowShift Black 7 Color Series Digital Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Gasoline or E85 FlexFuel Performance Vehicle
- Gasoline Wideband Air/Fuel Ratio Readings from 10.00 to 20.00 AFR – E85 Wideband Air/Fuel Ratio Readings from 6.00 to 12.00 AFR- 2-1/16″ (52mm) Gauge with Black Dial, Clear Lens & 7 Color Digital Display
- 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
- 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
10. AEM 52mm Wideband UEGO Air Fuel Ratio Sensor Controller Gauge w/White Face Kit -Automotive
By AEM
- 17 competitor wideband AFR controllers
- X-Series Wideband UEGO AFR Controller Gauge were fastest responding wideband air/fuel ratio controllers in an independent test vs
- Black bezel and black dual faced faceplate, silver bezel/white gauge option included.
- White bezel kit included.
- 52mm gauge diameter and slim 0.825” gauge depth.
- Display Lambda values from .55 to 2.00
- Factory calibrated resistor does not require free-air calibration, but technology allows for free-air calibration as sensor ages if user desires.
- Includes Bosch 4.9LSU wideband UEGO sensor
11. Auto Meter 3670 Sport-Comp II 2-1/16″ Wideband Air/Fuel Ratio Analog Gauge -Automotive
By Auto Meter
- wiring harness, 304 stainless steel weld-in bung, mounting hardware, and detailed instructions for installation
- Display range of 8:1 to 18:1
- Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft
- Modern white LED through-the-dial lighting provides clear visibility during nighttime use
- Auto Meter’s race proven digital stepper motor electric instruments provide unmatched accuracy which is further increased by utilizing a self calibration sequence during power up
- Suitable for use with gasoline powered engines
12. GlowShift Tinted 7 Color Analog Needle Wideband Air / Fuel Ratio AFR Gauge – Includes Oxygen Sensor, Data Logging Output & Weld-in Bung – Black Dial – Smoked Lens – 2-1/16″ 52mm -Air & Fuel Ratio
By GlowShift
- 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
- 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
- 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
13. Innovate Motorsports (3837) LM-2 (BASIC) Digital Air/Fuel Ratio Wideband Meter incl. Bosch LSU 4.9 , Black -Automotive
- Wideband O2 sensor (Bosch LSU 4.9) is compatible with most fuel types (leaded, unleaded, diesel, methanol, E85, etc)
- includes the LM-2, Bosch LSU 4.9, 8 ft sensor cable, cigarette-lighter power, USB cable, weld-in bung and plug, and quick-start guide.
- Patented “Direct Digital” Wideband Technology
- Positive lock connectors for all connections
14. Auto Meter 4775 Carbon Fiber Electric Air Fuel Ratio Gauge , 2.3125 in. -Automotive
By Auto Meter
- Will not work with wideband O2 sensors (0-5V) – please check your specific application before purchase
- Features LED radial bar graph display (gauge does not have provision for backlight)
- May require model 2244 if the vehicle does not have a factory narrowband primary O2 sensor
- Compatible with factory narrowband O2 sensors (0-1V)
15. GlowShift Tinted 7 Color Narrowband Air/Fuel Ratio AFR Gauge – Lean, Optimal & Rich Readings – Black Dial – Smoked Lens – 2-1/16″ 52mm -Air & Fuel Ratio
By GlowShift
- Includes 2′ Power/Sensor Harness, Gauge Visor, Mounting Hardware & Installation Instructions
- 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
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- GlowShift Tinted 7 Color Series Narrowband Air/Fuel Ratio Gauge Monitors & Displays Your Engine’s Air to Fuel Mixture by Reading the Voltage Output of a Narrowband Oxygen Sensor
- Narrowband Air/Fuel Ratio Readings from Lean, Optimal & Rich Mixtures – 2-1/16″ (52mm) Gauge with Black Dial, Tinted Lens & Illuminated Red Needle
16. Prosport Universal 52mm Premium Evo Electrical Wideband A/F Air Fuel Ratio Gauge Red/White/Blue/Green -Automotive
- Plug and play wiring harness
- 0-5 volt output signal for data logging.
- Utilizing the latest Bosch wideband O2 sensor -5 wire heated LSU 4.9 our gauge now has the widest range 10.0:1 to 20.0:1 AFR readings on the planet.
- Bosch 4.9 5 wire heated O2 sensor
- Wiring harness(Gauge to O2 sensor) 10 feet long
- 4 gauge color choices in one
- Weld in Bung
- Daisy chain
- Red, white, green, and blue.
- Decals
- Instructions
- Mounting Cup
17. GlowShift 10 Color Digital Narrowband Air/Fuel Ratio Gauge – Multi-Color LED Display – Tinted Lens – 2-1/16″ (52mm) -Air & Fuel Ratio
By GlowShift
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- GlowShift 10 Color Digital Series Narrowband Air/Fuel Ratio Gauge Monitors & Displays Your Engine’s Air to Fuel Mixture by Reading the Voltage Output of a Narrowband Oxygen Sensor
- Narrowband Air/Fuel Ratio Readings from 10.0 to 20.0 AFR – 2-1/16″ (52mm) Gauge with Digital Display & Tinted Lens
- Includes 2′ Power/Sensor Harness, Gauge Visor, Mounting Hardware & Installation Instructions
- Quick-Glance & Easy to Read Digital Display – 10 Solid Color Modes & 2 Color Cycle Modes – Self-Calibration at Startup Ensures that the Gauge is Performing Optimally
18. SELEAD Auto Electronic Gauge 2in 52mm Air/Fuel Ratio Gauge 1 to 20 with Blue Digital Readout Black Case with Smoke Tint Lens Digital Style Universal for Most Cars and Motors -Air & Fuel Ratio
By SELEAD
- Smoke tint lens during the day,clear and bright LED Display during the night.
- Compatible Fitment – Universal-purpose Gauge, fit for all kinds of vehicles, used to monitor the car’s air/fuel ratio.
- Thank you.
- Quick Installation – Comes with the gauge, power wire harness,and installation instructions,all of which make the install process quick and easy.
- Bright Digital Style – Our Gauge is a highly visible digital LED, which can be easily viewed from all angles under any lighting conditions.
- Hope you can find one gauge that you want
- After-sale service – With a high level of product confidence, We are committed to providing customers with the highest level of product quality and service
- Featuring Gauge – 52mm/2inch diameter, The gauge shows the range is 1 to 20
19. Innovate Motorsports MTX-L Plus Digital AirFuel Ratio Gauge Kit 8 ft w/O2 Sensor -Automotive
- Please see description for detail info.
- Innovate Motorsports MTX-L PLUS Digital AirFuel Ratio Gauge Kit 8 ft w/O2 Sensor
20. GlowShift Black 7 Color Dual Digital Wideband Air / Fuel Ratio AFR Gauge Kit – Includes Oxygen Sensors, Data Logging Output & Weld-in Bungs – Clear Lens – Multi-Color LED Display – 2-1/16″ 52mm -Air & Fuel Ratio
By GlowShift
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- GlowShift Black 7 Color 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
- 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
- Gasoline Wideband Air/Fuel Ratio Readings from 10.00 to 20.00 AFR – E85 Wideband Air/Fuel Ratio Readings from 6.00 to 12.00 AFR- 2-1/16″ (52mm) Gauge with Black Dial, Clear Lens & (2) 7 Color Digital Displays
- 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
21. Auto Meter 4370 Ultra-Lite Wide Band Air Fuel Ratio Kit -Automotive
By Auto Meter
- 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
- Auto Meter’s race proven digital stepper motor electric instruments provide unmatched accuracy which is further increased by utilizing a self calibration sequence during power up
- Traditional incandescent lighting illuminates around the perimeter of the dial
- Display range of 8:1 to 18:1
- Suitable for use with gasoline powered engines
22. GlowShift White 7 Color Digital Wideband Air / Fuel Ratio AFR Gauge Kit – Includes Oxygen Sensor, Data Logging Output & Weld-in Bung – Multi-Color LED Display – Clear Lens – 2-1/16″ 52mm -Air & Fuel Ratio
By GlowShift
- 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 White 7 Color Series Digital Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Gasoline or E85 FlexFuel Performance Vehicle
- Gasoline Wideband Air/Fuel Ratio Readings from 10.00 to 20.00 AFR – E85 Wideband Air/Fuel Ratio Readings from 6.00 to 12.00 AFR- 2-1/16″ (52mm) Gauge with White Dial, Clear Lens & 7 Color Digital Display
- 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
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
23. Auto Meter 3379 Sport-Comp Wide Band Air Fuel Ratio Kit,2.3125 in. -Automotive
By Auto Meter
- 0-4v data output feed for ECU, data acquisition unit, or Laptop tuning
- wiring harness, 304 stainless steel weld-in bung, mounting hardware, and detailed instructions for installation
- Suitable for use with gasoline powered engines
- 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system
- Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft
- Digital segment display and LED radial bar graph display
24. ESUPPORT Car 2″ 52mm Air Fuel Ratio Gauge -Automotive
By ESUPPORT
- Red LED illuminated needles.
- LED super white display.
- Diameter: 2″/52mm.
- Power: DC(10-15V) 12V Professional.
- Air/Fuel Ratio Gauge
25. Sunpro CP7011 Sport ST 2″ Electrical Air/Fuel Ratio Gauge Kit -Automotive
By Actron
- 2 inch black face to be mounted in a 1-1/6 inch hole
- Hook-up hardware kit is included
- Reads with red orange yellow green and blue LED’s with a 270 degree dial sweep
- 0-1.0 volt monitors O2 sensor
- Electrical air or fuel ratio gauge kit
26. Auto Meter 5779 Phantom Wide Band Air Fuel Ratio Kit,2.3125 in. -Automotive
By Auto Meter
- 0-4v data output feed for ECU, data acquisition unit, or Laptop tuning
- Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft
- 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system
- wiring harness, 304 stainless steel weld-in bung, mounting hardware, and detailed instructions for installation
- Suitable for use with gasoline powered engines
- Digital segment display and LED radial bar graph display
27. AUTO METER 200870-33 Gauge, Air/Fuel Ratio-Wideband, Analog, 2 5/8″, 8:1-18:1, Stpr Mtr, Marine Silvr -Automotive
By Auto Meter
- Suitable for use with gasoline powered engines
- 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
- Traditional incandescent lighting illuminates around the perimeter of the dial
- Display range of 8:1 to 18:1
- wiring harness, 304 stainless steel weld-in bung, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation
- Fit type: Universal
- Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 25ft
28. GlowShift 10 Color Digital Wideband Air/Fuel Ratio AFR Gauge – Includes Oxygen Sensor, Data Logging Output & Weld-in Bung – Multi-Color LED Display – Tinted Lens – 2-1/16″ (52mm) -Air & Fuel Ratio
By GlowShift
- Quick-Glance & Easy to Read Digital Display – 10 Solid Color Modes & 2 Color Cycle Modes – Self-Calibration at Startup Ensures that the Gauge is Performing Optimally
- Wideband Air/Fuel Ratio Readings from 10.00 to 20.00 AFR – 2-1/16″ (52mm) Gauge with Digital Display & Tinted Lens
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- 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 10 Color Digital Series Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Performance Vehicle
29. EPMAN 37mm Compact Micro Digital Smoked Air / Fuel Ratio Gauge Universal 3-4-6-8 Cylinder Engines (Black) -Automotive
By EPMAN
- Each gauge is supplied as a complete kit with installation instructions.
- adaptable and can easily be dash, pillar or roof mounted.
- All gauges in this series share the same physical external dimensions (70 mm long with a 37 mm diameter digital display) and weight is approximately 100 grams only
- CNC produced aluminium body with a perfectly anodised finish along with an integral slim line dash mount foot
- One of the most compact gauge displays available, so combined with great performance and stunning looks makes this a very attractive addition to any vehicle.
30. Edelbrock 6593 Air/Fuel Ratio Gauge -Automotive
By Edelbrock
- Used as a tuning tool
- Helps to improve ignition spark advance curves
- Consists of an oxygen sensor and a calibrated electronic display
- Used to guide carburetor adjustment and jetting
- Includes oxygen sensor / bung, harness, display unit and installation instructions
31. Innovate Motorsports 3918 MTX Series MTX-L Plus Wideband Gauge, Black/White, 52mm -Automotive
- Fit type: Universal Fit
- Bosch LSU 4.9 wideband O2 sensor
- Faster sensor frequency for faster O2 sensor feedback
- Enhanced heater control for superior sensor performance in forced induction and other high performance applications
- Faster analog output speed helps ensure that your ECU sees changes in air/fuel ratio as they happen
- Datalog using powerful LogWorks software on your PC
- 52mm (2 1/6″) diameter gauge body with included interchangeable faceplates and bezels
- Innovate MTS serial in/out (for use with MTS enabled devices to add additional logging channels)
32. Black Air/Fuel Ratio Gauge, with Abs Wire Harness Oxygen Sensor Fuel Ratio Kit -Specialty
By YYQTGG
- — Reduced Emissions — Allows you to monitor your engines air to fuel mixture, ensuring it is at optimal levels, reduced emissions and better fuel economy.
- — Easy to Install — Easily installed with the color coded wire harness that lets you connect the gauge directly to your vehicles existing narrowband oxygen sensor.
- — Automatically Adjust Brightness — It will dim 30% for easier night time driving by simply connecting it to your factory headlight switch.
- — Color Memory — With the color memory recall feature you don t need to worry about adjusting the color of your gauge every time you turn your vehicle on.
- — Reliability and High Performance — Advanced manufacturing technology, high reliability and high performance.
33. Auto Meter 5778 Phantom 2-1/16″ Wideband Air/Fuel Ratio Gauge Kit with Sensor -Automotive
By Auto Meter
- Peak recall/memory
- 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
- 10:1 to 20:1 AFR range for gasoline applications
- Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft
- User programmable range for Rich/Stoic/Lean conditions
34. Prosport Gauges EVO Wideband Red & Blue 52mm Digital Air Fuel Ratio Kit -Automotive
- Dual color display ~ This One gauge can display Red or Blue
- Dimmable display
- 4 time SEMA award winner !
- Includes Bosch 4.9 wideband heated 5 wire O2 sensor and Bung
- 0-5 volt output signal for datalogging
35. GlowShift Elite 10 Color Wideband Air/Fuel Ratio AFR Gauge Kit – Includes Oxygen Sensor, Data Logging Output & Weld-in Bung – Black Dial – Tinted Lens – Peak Recall – 2-1/16″ 52mm -Specialty
By GlowShift
- GlowShift Elite 10 Color Series Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Performance Vehicle
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- Wideband Air/Fuel Ratio Readings from 10 to 20 AFR – 2-1/16″ (52mm) Gauge with Black Dial, Tinted Lens & Illuminated Red Needle
- 10 Solid Color Modes & 2 Color Cycle Modes – Peak Recall Ability – Programmable High & Low Warning Notifications with Audible or Visual Alerts – Ability to Daisy-Chain Multiple Gauges from 1 Power Source & Wire
- 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, Dashboard Pod, Gauge Visor, Mounting Hardware & Installation Instructions
36. MaxTow Double Vision Wideband Air / Fuel Ratio AFR Gauge Kit – Includes Oxygen Sensor, Data Logging Output & Weld-in Bung – Black Gauge Face – Blue LED Dial – Analog & Digital Readouts – 2-1/16″ 52mm -Specialty
By MaxTow
- Wideband Air/Fuel Ratio Readings from 10.0 to 20.0 AFR – 2-1/16″ (52mm) Gauge with Black Dial, Clear Lens, Illuminated Red Needle & Digital Display
- MaxTow Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- 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
- Double Vision Display with Analog & Digital Readouts – Blue LED Backlighting – 3 Daytime & 3 Nighttime Dimming Modes
- MaxTow Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Truck
37. Ymiko Car Digital Voltage Meter, 2in 2-in-1 12V Air Fuel Ratio Gauge Voltmeter LED Digital Display for Universal Car -Automotive
By Ymiko
- Advanced MaterialsMade of premium ABS material, antirust, rust and water resistance
- Guarantee ServiceAs a responsible seller ,we provide satisfying products and service.If you have any questions about anything,please feel free to contact us ,we will contact our technician team to give you a perfect solution about it within 24hours.
- Read the airfuel mixture from 10 to 20 AFR, rich: 1820 AFR, optimal: 1218 AFR, lean: 1012 AFR.
- Convenient to UseEasy to install, including wiring harness and necessary installation hardware, no other sensors are required.Monitoring the airfuel ratio of the car, allows you to change the airfuel ratio to maximize power and engine performance, reduce emissions, and improve fuel economy.
- Professional ManufacturingWith advanced manufacturing process ,this Digital Voltmeter Gauge is built to meet standard specification, strictly obeying standard industrial quality control.
- Widely ApplicableThe Car Digital Voltage Meter is A brand new and good quality accessory.Perfectly suitable for most of cars, SUVs, vehicles, automobiles, etc.Hhighly visible, it can be easily viewed from all angles under any lighting conditions.
38. GlowShift Tinted Series Wideband Air/Fuel Ratio AFR Gauge Kit – Includes Oxygen Sensor & Weld-in Bung – Blue Digital LED Display – Smoked Lens – 2-1/16″ 52mm -Specialty
By GlowShift
- 2-1/16″ (52mm) Gauge with Black Dial, Tinted Lens & Red Illuminated Needle – White LED Backlighting
- Includes 4.9 LSU Wideband Oxygen Sensor, Weld-In Bung, Control Box, 10′ Sensor Harness, 7′ Gauge to Control Box Harness, 5′ Power Harness, Gauge Visor, Mounting Hardware & Installation Instructions
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- Wideband Air/Fuel Ratio Readings from 10.0 to 20.0 AFR
- GlowShift Tinted Series Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Performance Vehicle
39. Auto Meter 6175 Cobalt Digital Air / Fuel Ratio Gauge -Automotive
By Auto Meter
- Compatible with factory narrowband O2 sensors (0-1V)
- Will not work with wideband O2 sensors (0-5V) – please check your specific application before purchase
- May require model 2244 if the vehicle does not have a factory narrowband primary O2 sensor
- Features LED radial bar graph display (gauge does not have provision for backlight)
40. GlowShift 10 Color Digital Dual Wideband Air/Fuel Ratio AFR Gauge – Includes Oxygen Sensors, Data Logging Output & Weld-in Bungs – 2 Multi-Color LED Displays – Tinted Lens – 2-1/16″ (52mm) -Specialty
By GlowShift
- Dual Wideband Air/Fuel Ratio Readings from 10.00 to 20.00 AFR – Set Each Display to its Own Color – 2-1/16″ (52mm) Gauge with 2 Digital Displays & Tinted Lens
- Quick-Glance & Easy to Read Digital Display – 10 Solid Color Modes & 2 Color Cycle Modes – Self-Calibration at Startup Ensures that the Gauge is Performing Optimally
- 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, (2) 7′ Gauge to Control Box Harness, (2) 3′ Data Logging Wires, 5′ Power Harness, Gauge Visor, Mounting Hardware & Installation Instructions
- GlowShift 10 Color Digital 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
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
41. GlowShift Elite 10 Color Narrowband Air/Fuel Ratio AFR Gauge – Lean, Optimal & Rich Readings – Black Dial – Tinted Lens – Peak Recall Function – 2-1/16″ 52mm -Automotive
By GlowShift
- Narrowband Air/Fuel Ratio Readings from Lean, Optimal & Rich Mixtures – 2-1/16″ (52mm) Gauge with Black Dial, Tinted Lens & Illuminated Red Needle
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- Includes 6′ Sensor Harness, 2′ Power Harness, 1′ Daisy-Chain Harness, Dashboard Pod, Gauge Visor, Mounting Hardware & Installation Instructions
- GlowShift Elite 10 Color Series Narrowband Air/Fuel Ratio Gauge Monitors & Displays Your Engine’s Air to Fuel Mixture by Reading the Voltage Output of a Narrowband Oxygen Sensor
- 10 Solid Color Modes & 2 Color Cycle Modes – Peak Recall Ability – Programmable High & Low Warning Notifications with Audible or Visual Alerts – Ability to Daisy-Chain Multiple Gauges from 1 Power Source & Wire
42. GlowShift Narrowband Oxygen O2 Sensor for Air/Fuel Ratio Gauge -Automotive
By GlowShift
- GlowShift Narrowband Air/Fuel Ratio Oxygen Sensor Allows Users to Install a Narrowband Air/Fuel Ratio Gauge to Any Vehicle that Doesn’t Have an Existing Oxygen Sensor
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- Compatible with Any GlowShift Narrowband Air/Fuel Ratio Gauge
- Includes Step-By-Step Installation Instructions
- Features M18 P-1.5 Thread, 16″ of Green Wire with Connector, Butt Connector & Heat Shrink Tube
43. MaxTow Double Vision Wideband Air / Fuel Ratio AFR Gauge Kit – Includes Oxygen Sensor, Data Logging Output & Weld-in Bung – White Gauge Face – Blue LED Dial – Analog & Digital Readouts – 2-1/16″ 52mm -Gauge Sets
By MaxTow
- MaxTow Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- 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
- MaxTow Wideband Air/Fuel Ratio Gauge is Essential for Tuning & Mapping Out the Air to Fuel Ratios of Your Truck
- Wideband Air/Fuel Ratio Readings from 10.0 to 20.0 AFR – 2-1/16″ (52mm) Gauge with White Dial, Clear Lens, Illuminated Red Needle & Digital Display
- Double Vision Display with Analog & Digital Readouts – Blue LED Backlighting – 3 Daytime & 3 Nighttime Dimming Modes
44. Auto Meter 4378 Ultra-Lite Digital Wideband Air and Fuel Ratio Kit -Automotive
By Auto Meter
- 10:1 to 20:1 AFR range for gasoline applications
- Peak recall/memory
- User programmable range for Rich/Stoic/Lean conditions
- wiring harness, 304 stainless steel weld-in bung, mounting hardware, and detailed instructions for installation
- Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft
- 0-4v data output feed for ECU, data acquisition unit, or Laptop tuning
45. Auto Meter 4479 Ultra-Lite Electric Air Fuel Ratio Gauge -Automotive
By Auto Meter
- Display range of 8:1 to 18:1
- wiring harness, 304 stainless steel weld-in bung, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation
- Auto Meter’s race proven digital stepper motor electric instruments provide unmatched accuracy which is further increased by utilizing a self calibration sequence during power up
- Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft
- Suitable for use with gasoline powered engines
- Traditional incandescent lighting illuminates around the perimeter of the dial
46. GlowShift Tinted Series Narrowband Air/Fuel Ratio AFR Gauge – Lean, Optimal & Rich Readings – White LED Backlit – Smoked Lens – Smoked Lens – 2-1/16″ 52mm -Automotive
By GlowShift
- GlowShift Guarantee with One Year Limited Warranty & Free Lifetime Technical Support
- Includes 2′ Power/Sensor Harness, Gauge Visor, Mounting Hardware & Installation Instructions
- GlowShift Tinted Series Narrowband Air/Fuel Ratio Gauge Monitors & Displays Your Engine’s Air to Fuel Mixture by Reading the Voltage Output of a Narrowband Oxygen Sensor
- 2-1/16″ (52mm) Gauge with Black Dial, Tinted Lens & Red Illuminated Needle – White LED Backlighting
- Narrowband Air/Fuel Ratio Readings from Lean, Optimal & Rich Mixtures
47. Air Fuel Ratio Meter, 7 Colors LED 52mm / 2in Car Air Fuel Ratio Gauge Modification Instrument Fit for 12V Vehicle -Gauge Sets
By Aramox
- Let you get rid of the trouble of installation.
- Built to meet standard specification, strictly follow factory quality control.
- If you are not satisfied, we will accept all return, replacement or refund requests.
- Compatible: Air Fuel Ratio Gauge is universal install on any 12 volt vehicle
- Professional and practical automotive air fuel ratio measuring tool with high sensitivity and easy operation.
- Easy to Install: Wideband Air Fuel Ratio Gauge is easy to install, no complicated tools required
- Premium-quality Material: Air Fuel Ratio Meter is made of high quality ABS shell and aluminum material, anti-acid and alkali and high strength for maximum durability.
- Pre-test: This product has been fully tested before leaving the factory to ensure that it provides you with a satisfactory experience
- Excellent Performance: High level of accuracy and sensitivity, enhance safety of your vehicle
Air fuel ratio gauge – The Buyer’s Guide
You must have checked the above list, aren’t you mind-blown by the quality of products? Well, if you are then here’s a secret formula which we’ve used to choose them. You can use them too! The best part is, it works for all the product purchases you make! Besides, wouldn’t it be helpful to you, if you knew the factors we’ve considered to choose the air fuel ratio gauge in the above list? So shall we begin with the guide and help you learn about the important factors?
1. Does it have the features you need?
Wait for a minute before you buy the air fuel ratio gauge, check if it has all the features in your requirement list! If it doesn’t have them, then you should avoid buying that particular model and start looking for an alternative. We always suggest our editors to make a list of important features before adding a product to a list and based on the feature, the quality of the product, brand-assurance, rank it! So if it has all you need, you should not mind paying a bit extra. However, if you end up buying the best air fuel ratio gauge which doesn’t have the feature you need the most, then it won’t make sense! Would it? To us, it wouldn’t! That’s why you should make up a list which includes the features you are looking for, technical specifications if any, etc and come up with a budget.
2. Budget and Price Match
Well, you obviously can’t buy the best air fuel ratio gauge with a low budget. That’s why it’s important to make note of all the important features, specs, factors and come up with a budget. Once you are ready with it, look for the products which are either equal to your budget or are close to it. Stick to the budget, because while browsing, you’ll see a model which is slightly better and has an additional feature with a really small price difference. Well, in that case you’ll have to calculate the price of the product which has all the required features and the air fuel ratio gauge with the additional features. See if the difference in amount is worth for the feature? If you don’t have second thoughts, you shall probably increase your budget.
3. Warranty and Brand
Most of the air fuel ratio gauge industry experts we got in touch suggested us to always buy the one which comes from a reputable brand. They also explicitly asked us to include the best brands so that users don’t buy the models from unknown brands or non-reputable companies. Because air fuel ratio gauge from an unknown brand might be cheap at first glance, but could have high-maintenance and could cost a lot in repairs.
Another benefit of buying a air fuel ratio gauge from a reputable brand would be warranty. Most of the air fuel ratio gauge from reputable brands come with good warranty. However, cheap products do come with a warranty, but claiming it can be a herculean task. That’s why buy the models which come from known brands and have good warranty.
4. Check for Reviews and Ratings
Back then when the Internet wasn’t as big as it is today, local stores charged high and even ended up selling the products which sucked or wasn’t future proof. It’s because the salesman threw technical terms and confused the buyer. But nowadays, there are sites like ours which does all the research and lists down the best models and there are eCommerce stores like Amazon which has user reviews which can be read to know the experience of the user with that particular air fuel ratio gauge. Isn’t it great?
The Verdict
We hope that you loved the air fuel ratio gauge we’ve listed in our best list. If it has been helpful, please bookmark our website and share it with people you know whenever they plan to buy something.
To wrap up this guide,
- If you are looking for the best air fuel ratio gauge: You shall consider going for GlowShift 10 Color Digital Dual Wideband Air/Fuel Ratio AFR Gauge – Includes Oxygen Sensors, Data Logging Output & Weld-in Bungs – 2 Multi-Color LED Displays – Tinted Lens – 2-1/16″ (52mm)
- If you want the one which has similar features to the best, then you shall consider going for GlowShift Black 7 Color Dual Digital Wideband Air / Fuel Ratio AFR Gauge Kit – Includes Oxygen Sensors, Data Logging Output & Weld-in Bungs – Clear Lens – Multi-Color LED Display – 2-1/16″ 52mm
- If you want a air fuel ratio gauge which is “value for money” then you shall go for the AEM (30-4110) UEGO Air/Fuel Ratio Gauge
- If you want the cheapest air fuel ratio gauge then the ESUPPORT Car 2″ 52mm Air Fuel Ratio Gauge should be the best one for your needs!
