Plug-In Adapter (2nd Generation) and Ring Video Doorbell 2

Hi All! New to the forum and have question. I tried searching around and found similar/related threads, but not this particular one. I have a Ring Video Doorbell 2 that is currently running on the battery, but I am thinking to hardwire it with a plug-in adapter. On the Ring website I found the Plug-in Adapter (2nd Generation) (https://ring.com/collections/accessories/products/video-doorbell-plugin-adapter-gen-2) which indicates that it is compatible. However, I have some questions: 1) This looks to be a DC output transformer, but I read in my manual that I am supposed to use an AC output transformer. Will this work? 2) I do not have a chime in the circuit and was planning to use a wire wound resistor as suggested. If I use this particular plug-in adapter do I still need the wire wound resistor? Thanks for your help!