| Post 3 made on Thursday May 25, 2017 at 14:13 |
BlackWire Designs Senior Member |
Joined:
Posts: | September 2006
1,401 |
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The Ring and Ring Pro do have a contact on the back. They are powered by those contacts from the existing doorbell and power supply loop as well as have the ability to close the contact to ring the old bell.
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BlackWire Designs |
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