Good question @Slandin1973! If you removed the device, you will need to start a new setup in the Ring app. The Doorbell 2 will be added upon a successful completion of a setup. I hope this helps! 
Good question @Slandin1973! If you removed the device, you will need to start a new setup in the Ring app. The Doorbell 2 will be added upon a successful completion of a setup. I hope this helps!