Nutone LB55 & Ring Pro Installation

Hello!
I recently purchased the Ring Pro and am just a bit confused on the installation. I believe, based on the list of compatible doorbells, that it should be ok. My Nutone is listed as “Nutone Scoville”, but with a bit of internet searching, it appears that it is the LB55.

I don’t see anywhere where it isn’t compatible, the one listed as Non-Compatible is the LBC55, which is the model with a clock in it.

Thoughts? What isn’t straight forward to me is where the transformer screw is to attach. I also believe I have a separate power source installed in the basement.

Any help / advice very appreciated!

Cheers.

Hi @Trafalgargirl. The Nutone LB55 digital chime has not been verified to be compatible or incompatible with the Pro. Please give our support team a call at one of the numbers available here to look into this further with you. If you are outside of the US, please visit here to see how to contact support.