I'm grabbing some new pickups for my Strat soon, and I wanted to make sure all the wiring/components are good. I'd like to test my pot values to see if they're actually at 250K. I know a multimeter is useful, but I'm overwhelmed. How advanced does it need to check the components I'd come across doing guitar work? I went to a local gadget store and there were several, ranging from $20 to $50. If I don't need the more expensive one, I'd rather just go with the cheaper one. Anyone got any advice? What requirements or features do I NEED?