I have couple of questions regarding the 2GIG door bell:
I have an existing hardwired door bell. However, the bell does not work anymore! So I was thinking of getting the 2GIG bell. I am planning to use the same wiring, and I understand the 2GIG bell comes with an internal battery. Do I need this battery if I were to use the existing hardwire?
My second question is related to programming. “Select RF sensor supervised” what is this feature? And why do I need it?