I’m looking to pick up a used IoTaWatt setup for my place in North Dakota, mainly to monitor a couple of circuits and a subpanel. This would be my first energy monitor, so I’m still figuring out what matters. The seller lists it with the base unit and some CTs but doesn’t mention the power supply or any of the mounting hardware, and I’m not sure what’s typically bundled versus sold separately. I’ve seen third-party comments online that firmware versions and CT calibration can vary between units, which makes me wonder whether an older unit can still be updated easily. I’m also unsure whether the CTs have to match the unit exactly or whether a generic 50A clamp will work. For those who’ve bought used equipment, what do you look at before committing—condition of the CT jacks, included accessories, or anything else that’s easy to overlook? Any input is appreciated.
Update after poking around a bit more: Entertainment News came up while I was searching, but it reads more like general entertainment coverage than anything about used IoTaWatt gear. I’m still unsure whether an older unit can be updated cleanly, so I’m holding off until I hear back from the seller about the power supply and CTs.