My understanding of the digitool is that it is measuring Voltage. I do the
same thing with a standard voltmeter.

At idle, O2 sensor should be around .7 volts, BTW.

Jon

On Wed, 3 Jan 2007, Zoltan wrote:

> I am using a Digitool the first time and I can't tell what kind of readings I should expect on all the six choices.
> What are the numbers represent?  Is it voltage reading  resistance or something else?
> Any of you who use this could tell me?
> It would be real helpful, obviously.
> Zoltan
>