Hi, has anyone used Pico for testing cooling system stray current(voltage) with confirmed results. Everything I have always read says to use anologue voltmeter not digital. wasn't sure where that left Pico in comparison.

Thanks fisher, that is what I am talking about but most other information is telling me 0.05V max checked alologue against that article refering 0.3V with digital. I seem to recall the choice of meter recommended has something to do with internal impedence, could be wrong, don't really understand the electronic principles here I'm afraid.