O2 sensor and Fluke 73 Meter

[akart]

xxx

[MikeB]

Voltages might vary among different sensors, but I was just reading about one with a range of 0.1 volt (very lean) to 0.9 volts (very rich) and 0.45 volts when mixture is ideal at 14.7:1. However the article also says this:

"You can read the O2 sensor's output with a scan tool or digital voltmeter, but the transitions are hard to see because the numbers jump around so much. Here's where a PC based scantool such as AutoTap really shines. You can use the graphing features to watch the transitions of the O2 sensors voltage. The software will display the sensor's voltage output as a wavy line that shows both it's amplitude (minimum and maximum voltage) as well as its frequency (transition rate from rich to lean)."

One of these days I'm gonna spring for something like this:
https://www.summitracing.com/parts/a...4110/overview/