[dewdude]

Part of the reason I don't want to do that is because even though it's not on often; the batteries could still die without warning; leaving me to have to change batteries. We had one at work that ran off a 9V; I got tired of having to put off projects because we didn't keep 9V in the shop. I stuck a basic 9V wall-wart on it; never had an issue with it again.

I'll work around the reference to ground stuff when it comes around; but I'd like to have a piece of test equipment I can just plug in and work; not have to check batteries and then rig some up just to use it for five minutes. I have had cases where I've run the signal tracer for 2 or 3 hours a day; simply because I was moving amps on and off the bench and wanted to be able to grab the probe and start testing.