Wideband UEGO Air/Fuel Ratio Gauge 52mm (2-1/16”) with 4.9 LSU Sensor, Digital AFR Controller Gauge, Wideband O2 Control Sensor kit | 0-5V Analog Output (10-20 AFR Range)

Been working spot on for over a year no issues. Only think I can say compared to the authentic AEM gauge is that this one responds just a little slower but is still accurate.

After buying expensive wideband gauges, then finding these I figured it was worth a try. Since that first try I've bought 3 or 4 of them for different vehicles. Only had an issue with a sensor on one I purchased. Messaged the company and instead of just sending me a new sensor, they sent a whole new gauge kit within 2 days. Pretty solid product with great customer service.

Worked great for a month, then the gauge stopped working, still reads in tuning software the gauge tho is just all lights on with no reading. Can't find a way to contact seller for warranty will update based on that. *edit: tested sensor its fine the controller unit stopped working. Still waiting on a message back from seller

This controller worked great last summer, but is now dead. The screen is blank. I verified power and ground and tried disconnecting and reinstalling it after waiting a few minutes with no change. I see the seller offers a 24 month warranty, but even though I still have the manual, I can't find any contact info. I would definitely raise my rating if the seller sees this and honors the warranty. Update: The seller sent me a message wishing to honor the warranty with a replacement within 1 day of this post.

If you read the reviews you know that this gauge comes with a garbage o2 sensor. But it doesn’t matter because it’s still the cheapest way to get a reliable system. Just don’t use the included sensor if you can’t meet the requirements for it to function. They state clearly in the directions that it must be a certain distance downstream and never exceed a relatively low temperature and only be exposed to a somewhat narrow A/F ratio or it will ruin it. Normal o2 sensors are usually mounted far closer to the motor and drastically exceed the rated temp. So basically, toss the included sensor and purchase a new Bosch o2 sensor part number 17212. It’s the cheapest wide band they make at 59.99, and is available at most reputable places. Then just install it in the original port in your exhaust and bam! Perfectly accurate and reliable system for a fraction of the name brand stuff. Gauge works great, which is not surprising since it is a simple electronic system that only shows the output voltage from the sensor via readout/indicator lights on the gauge face. Would be great if it were even cheaper by being available without the junk sensor. Also! I’ve been running this kit with the Bosch 17212 for a while now with no problems at all.

Worth the money

Been installed for about a month now. Make sure you throw away the sensor that comes with this and replace it with the bosch unit…so far no complaints. I bought a different one from another seller a while ago and when the unit leaned out, it had an alarm wasn’t a big fan.

Hooked up the gauge for the first time today. Had sensor hooked up before adding power and ground. Gauge came alive at 14.7 and then climbed to full lean. Which seems correct since the engine wasn’t running. I started the engine and nothing. I tried more throttle and not a blip of change. I verified good power and ground. If the company can reach out to me about warranty for the sensor atleast, I’d appreciate it before I return the whole setup. Or if they have any in-depth T/S. I was hopeful and and thought I’d get lucky with a good setup, but it seems the reviews are accurate and the sensor is junk

Funciona perfectamente

This kit comes with everything you need and works great with accurate readings. Easy to install, looks good, and even customizable. Both the wires are more than long enough for any mounting location. I have been using this gauge for the whole summer in my Boosted car and it has held up great. Also it's way cheaper than the name brands and I can't see why you wouldn't go with this.

La herramienta perfecta para analizar la mezcla de aire combustible , ya aprobé dos verificaciones vehiculares con este medidor afr

Stopped working after a month. Now showing 14.6, at whatever RPM or boost, even when the car is off.

Let’s be honest. We all know what this a copy of. I bought 2. The gauges work great. I had one sensor bad which is common. Seller refunded me the cost of one sensor I had to replace. Great to deal with.