Review on HOTSYSTEM Narrowband Pointer Digital Readouts by Jay Chowdhury

I would like this sensor to be dimmable/dimmable. This sensor is the brightest sensor (especially the fluorescent blue numbers) on my car. I also wish the wires were a bit thicker - is that just 22 - 24 AWG? For the money this is a good buy. Time will tell about the reliability. Multi-color settings are a big plus! A tip: if you use a single-wire, narrow-band O2 sensor without a heater, it will take a few minutes for the sensor to respond - in the meantime, the sensor will read a rich mixture and get stuck at "10.0". Most modern cars now come with heated O2 sensors, so this shouldn't be a problem for most of you.