@ joe - Knowledge, but no wisdom = unhelpful
Practice what you preach and look at my profile it will tell you how old i am...

@mel - completely avoided the question you tried (and failed) to answer = unhelpful
I allready know it's set to 5 volts... the question was what do you use to measure more than 5 volts?

Do you two really think I壇 post here without spending days trying to find the info myself? that single one liner "...when i was 13 i was writing large BASIC programs on my spectrum and have since gone on to HTML, CSS, PHP..." should tell you I知 an experienced programmer capable of learning on my own and know to check with people that are 'supposedly' in the know to make sure I知 on the right tracks...

So far, I知 not impressed...