All I know is they check for amps watts voltage and everything... they dont have to be used for solar panels but um they have like alittle spinny thing in the middle of them. you spin it around to what you wanna test such as the amps watts voltage and stuff.... idk what their called but im looking to buy one to test my solar panels when they come in
They're called...Electric Testers, or Voltage Testers, or whatnot, they don't really have a special name in my experience. Just go to your local hardware store and buy one.
