I am considering enhancing a commercially-available device so that it can be installed outdoors. The enhancement would be to seal the product inside a resin case to make it weather-resistant. The result will be something that looks like a brick with wires sticking out for 12v DC power and Ethernet data. Once inside the sealed case, the product, along with its FCC sticker, would be invisible. The resin case would have my branding on it and not that of the sealed device. Can I just remove the FCC sticker on the original device, before encasing it, and apply it to the exterior of the new sealed case, or do I need to go through the FCC conformance testing as if it were a new totally different product? The sticker would have the branding of the sealed-device manufacturer on it. The device is an unintentional radiator.
I have the option of either sealing the entire device, as it is sold, or removing it's circuit board from it's original enclosure, only sealing that, and discarding it's original plastic non-shielded enclosure. Would it make any difference between any of these two scenarios, from the point of view of FCC conformance testing requirements?
Thanks for your attention.