7 Color Air/Fuel Ratio AFR Gauge Kit Narrowband Pointer & LED Digital Readouts 2-1/16" 52mm Black Dial for Car Truck

Easy to install, easy to read.

I wish this gauge had a way to adjust / dim the lighting.This gauge is the brightest (especially the fluorescent blue numbers) gauge in my vehicle.I also wish the wires were a bit thicker - it's barely 22 - 24AWG?For the money, it's a good buy.Time will tell if it's reliable.Multi-color settings a big plus!One tip, if you are using a non-heated, single-wire narrow-band O2 sensor, it takes a couple minutes for the gauge to react - in the meantime, the gauge pegs rich and is stuck on "10.0".Most modern cars now run heated O2 sensors, so this should not be a problem for most of you.

Installed but will not light up

Bought this gauge for a "ballpark" carburetor tune. It works. It is a narrow band gauge so it is not accurate but it will get you close enough to where you need to be for a carb application. I wouldn't tune fuel injection with this. It is mounted on my dashboard and it looks decent in "green" lighting mode.The other gauge I bought from this company - the tachometer - is cheap garbage that does not work. Don't buy that.

Bought 3 , all 3 died. Number stop showing and arrow is clicking.

Nice gauge for the price. I tried 3 others, all not as good as this one. The gauge reading does act wonky at times inherent in any narrowband setup. So if u plan to use this gauge as reference to tuning you'd be better off using a wideband setup. But overall a good buy.

Stopped working withing hours of install. Bought 6, 3 failed. Too bad they look great