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Air/Fuel Ratio Gauge Kit with LSU 4.9 Sensor and Controller Box Wideband UEGO 30-0300 X Ultra-Thin Round Digital AFR O2 Oxygen Sensor Controller Universal Gauge

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$81.44

$ 34 .99 $34.99

In Stock

About this item

  • Easy Installation:Wideband AFR gauge is made of high quality materials and technology and is easy to install thanks to its standard 52mm housing. You can easily install it in almost any location. at the same time, it never requires free-air calibration when used with our wideband O2 UEGO AFR gauge
  • Flexibility and Expandability: The controller box in the kit is highly flexible and expandable. Users can adjust and expand the controller box configuration to meet the requirements of different vehicles and applications. The ability to customize the controller box's connections and parameters according to the engine management system's specifications and personal preferences to achieve the best fit and performance optimization
  • Wide Compatibility:Our air fuel ratio gauge comes in a standard 52mm (2-1/16 inch) housing that fits in a variety of instrument pods, providing flexible mounting options. Compatible with vehicle/system voltages up to 16V
  • Accurate and Fast Feedback:The UGEO Air Fuel Ratio Gauge is equipped with a 4.9 LSU sensor that provides real-time feedback with high accuracy and fast response time. It responds instantly to every 0.1 change in air/fuel ratio, giving you more time and accurate information when making adjustments
  • Versatile design: In addition to measuring and displaying the air/fuel ratio, the Air/Fuel Ratio Gauge also features a broadband measurement and digital display. This means you have access to more comprehensive data and insight into your engine's combustion state for precise tuning and optimization



Product Description

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
AFR
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  • Easy Installation: The standard 52mm housing ensures a hassle-free installation process in virtually any location.
  • Accurate Measurements: Our wideband AFR gauge provides precise air/fuel ratio readings, allowing for optimal engine performance and fuel efficiency.
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Packaging:

1×Wideband Air/Fuel Ratio Gauge 1×LSU4.9 UEGO Sensor 1×9.8ft UEGO Sensor Wire 1×O2 Sensor Bung 1×Controller Box 1×3.2ft Controller to Gauge Wire Harness 1×3ft Controller to Power Supply Wire Harness

Notice:It can only be used as an AFR Gauge for observation and monitoring, and cannot be connected to a computer terminal for analog output!

AFR

Kevin & Ashleigh Schick
Reviewed in Canada on March 2, 2025
Package showed up I installed it and it worked for a total of 2 minutes and quit, using it on a v8 SBC. My option is it’s junk, I’ll be buying a better quality product in the near future.
Who knows
Reviewed in the United States on February 17, 2025
Works amazing only downfall is the control box don’t click in so can’t pull on it make sure it’s in a decent spot or your connection may come out. Not bad for its price compared to other AFR gauges. Its accuracy of reading fuel and air the instructions are also nice makes sense to even the most incompetent lol and the quality of the plastic isn’t bad but could be better but also is a budget friendly gauge.
Samantha
Reviewed in the United States on February 10, 2025
Pleased with my purchase
kane d
Reviewed in the United States on July 10, 2024
wiring was super easy if you have nothing to connect grave a cigarette lighter conecter and put the wires together, no problems yet would recommend
Jacob Newman
Reviewed in the United States on December 29, 2024
Works for a few but I run race full 110 octane and eats the sensor up
Reynold C.
Reviewed in the United States on December 27, 2024
The item works great and was installed with no hassle, the guage lean-rich indicator sadly is only red besides that it's a great product.
johnny the greek
Reviewed in the United States on December 22, 2024
Much less expensive then other name brand models.It's only downside is having to hide it's sensor box. Most high dollar units are all built into the guage. Which i have used on my other cars. I tried this one on a cheaper car of mine to see how it does. It works, and is quite a bit less expensive as I mentioned, but I prefer the cleanliness of the more expensive units.
locos
Reviewed in the United States on December 15, 2024
I unplugged the afr sensor and it continued to give values to the gauge. Im not convinced its accurate
A. Patrick
Reviewed in the United States on November 1, 2024
The box states it works for methanol, but instructions do not show any provisions for changing the controller to read methanol afr, or switching the gauge to display lamda.