Another thread discussing what devices work with OPN. Volusiano does not use the Noahlink Wireless. Again, there is the ambiguity between the Wireless version and the plain old original Noahlink version. It’s possible that you need the FittingLink and the Noahlink Wireless won’t work - as someone else says in the thread, you should go with whatever device the fitting software for your HA’s says to use.
Volusiano also references another thread discussing FittingLink/Noahlink Wireless differences.
I guess further down in the first thread that I cite at the beginning of this post, Um_bongo implies that Widex is the only wireless HA device that Noahlink Wireless won’t work with but it’s pointed out to do firmware upgrades of the OPN 1, you’d need HiPro. So you could have a problem if your fitting software expects newer firmware than you currently have in your HA’s or perhaps vice-versa.