metal disks

[CC Solutions]

RFID = Radio Frequency Identification?

Do you mean a probe that will transmit the data? I know they have those.

I always have a witness look at the readings. Not every time, but if the installer is ready to go, I walk around with him and we check the readings. Or usually someone from the GC is always looking over my shoulder.

Then I follow up with a report stating the readings, all parameters of the testing, and any attendees that watched the testing. I email that to whoever hired me and file a copy in my office.

Usually a dated copy of a report is enough evidence that if any problems came up you could use that as the basis. If there was a question about the readings at the date of the original report, someone would have mentioned it then.