Ring Pro 2 hard wired chime

Hi Ring Communityi have a ring doorbell 3 that is hard wired to a friedland type 4 8-16v i am in the process of upgrading to a Ring Pro 2.id like to keep the existing chime.The pro will be installed with supplied 24v transformer. I have read in the below url. that the chime must also be 24v compatible. so far i am unable to find a 24v compatible chime.https://support.ring.com/hc/en-au/articles/360044443152any advice would be greatly appreciatedKind RegardsP