Product Material They are easy customizable and is available in different types of metal and designs to suit your personal taste.
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FUNCTION Protected by exterior storm door and they are quite durable. Their ability to work without electricity, makes them more reliable guest announcement system.
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INSTALLATION These are not hooked up to your house power grid, so are much easier to install. Regardless some screws, struck plate and a drill is likely all you’ll need to put in a door knocke
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