What is FCC Equipment class "Part 15 Low Power Transceiver, Rx Verified" ?

[Jason]

I found a fairly cheap (<$5) FCC certified NRF24 module with 20dBm output power. NiceRF RF2401F20 (https://www.nicerf.com//product_180_216.html)

The FCC ID is 2AD66-RF2401F20. It's FCC Equipment class is "DXT" "Part 15 Low Power Transceiver, Rx Verified"

I do not understand what "Part 15 Low Power Transceiver, Rx Verified" actually means and I cannot find an explanation online. Is this not full modular approval? It has metal shielding and the FCC number on the case. Would I need a "Class 1 Permissive Change" or "Class 2 Permissive change"?  Or something else?

I'm trying to eliminate as many upfront costs as I can so I don't want to use a module that requires expensive and time consuming testing to comply with FCC regulations. 

My ISP1807 module has an Equipment class of "Digital Transmission System" and I believe it has Full modular approval. I think it requires no testing whatsoever. I just need to follow these instructions

[JONATHAN LL]

Hi Jason,

You will have to check with NiceRF Wireless Technology LTD for more information and details on the module. 

Here is some information on the FCC modular approvals: https://www.element.com/nucleus/2020/03/16/17/19/modular-approvals-for-wireless-radios 

I am not certain but I believe that at some point you will have to test EMC of the finished product. 

Sorry that I don't have better answers on the topic.
Regards,
Jonathan

[Jason]

Thanks, I have a contact at a testing company. I'll see if he knows. Thanks for your help.