Review on Madison Electric MSBTRAC1 Power Tracer by Peter Sullivan

I'm an electrician and this simple tool is invaluable on the job site. The data pin is the larger hole (yellow) and the smaller hole is the socket. Since the box has to be strong enough for the supports to work, you have very little room for error or the lid won't close the hole. or the box does not hold. The layers on it keep it straight. I would recommend it to anyone who needs to be crated. I get a lot, can I borrow this at work.