They (Panduit) gave me one to try out on an MCC that I had here at my facility, but their shipment was delayed and it arrived too late, the MCC was gone. I have another MCC in a demo lab that I could put it on, but they only sent me the one and I want to put it on the MCC that is now gone, so it means a road trip and I can't get the time to go do it yet. Maybe next week though. We've been using the GracePort version (Voltage Vision I think) that gives you little neon light indication of energy in the box and although I like them, others don't allow them because you can't test them. That was the thing that I wanted to try out with the VeriSafe units, they have a test function, so I'm thinking that may qualify it with some safety standards that require Test-Verify-Test procedures before entering an electrical enclosure.