Universal Digital Wideband Air/Fuel Ratio AFR Gauge Kit - 2-1/16"(52mm) with Sensor and Controller Box-Wideband UEGO AFR O2 Oxygen Sensor Controller Gauge

Easy to install as well very convenient.

Gauge will not fit in 52mm mount as description states, too small. When mounting bracket attached it is too large. Should not even include mounting pod it won't fit in.

This gauge seems like a good value it would have been better with more comprehensive directions to install it. Frankly it is very lacking for showing you where in the system to attach it. A guide for how to read and interpret the results would have made this a shining star for me. I’m looking at the results and going ok how is this helping? How does it read psi of boost and inches hg for vacuum? How does it do both? What is the digital readout saying? Is that reading 85 or 8.5? Is that enough? Do I have it connected to the wrong line? I have no idea. And the six diagrams on a time sheet do not help me answer any of this.This being said I’m not unsatisfied. I’m thinking of buying another one for my dump truck to show boost of my turbo. But once again I have no idea where to tap in. Or what the results mean or are they accurate.

Haven’t hooked it up yet but looked over everything. Comes with weld in bung and the filler piece if you’re not using the sensor probably supposed to have it screwed in while welding to prevent warping. Wires all seem like their probably long enough I don’t know if they sell and extender wire or not. Comes with two different mount options the gauge itself with pod is about half inch thick or so. So nice and compact if using car with limited mounting space.

First time user of afr gauge. It's kinda awesome once you figure it out ( limited instructions didn't cover very much ) and being able to see exactly what your engine is doing throughout the rpm range is awesome. Provides so much more information than relying on reading the plugs.

The gauge doesn't fit the housing that came with it.

If you are looking for a small, flat electronic oil pressure gauge, this may work for you. But if you want to mount it, you will have to rig something up as the gauge is too small for the mount and the gauge isn’t actually 52mm.