Stop in for a cup of coffee

So tempted to go do a test tutorial on my starting system in the Fargo. Should be similar.
Maybe the dam trans lever isnt all the way back in park. Or in neutral. Thats what i like about my ohmmeter, it will set off a tone in a continous circuit.

i prefer my power probe, it has an automatic magic smoke release prevention switch built in (circuit breaker)
What else does Power probe's tester do that makes it different?
Circuit breaker is nice?
Can it be used both self-powered and as a test light?