The machine proven here’s a two-pole tester from www.picoauto.com
It could possibly be the piece of apparatus that does an important take a look at you’ll ever perform! The take a look at that stops you being killed by electrical shock. The machine is deliberatelly quite simple. The picture prime left is a take a look at with the leads linked collectively. The subsequent picture is a secure 12V studying however the backside picture reveals a dangerour studying (mains voltage with my PV panels working on this case).
Easy go, no-go outcomes.