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Yes, if they are both used and you have a door bell on each one, you would want to install one on each door. My mother has a similar situation and we installed one on each door. If you do not have an existing door bell you would need to install a camera.
Sorry, there was a problem. Please try again later.Yes, I believe you do. There is one camera per doorbell with a certain area that can be covered. In two different locations, one doorbell would not do the job. However, it is a great invention. It's become a necessity for me. Very happy I bought it.
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