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Title: hidden pitfall
Review: This device looked like the solution for my porch access gate. The situation does not need high security just controllable privacy. The product picture shows a conventional deadbolt and says it is just a drop-in replacement. What they DON'T show is the backside (inside of door). Instead of a conventional key lock (double bolt) or a thumb knob there is a very large box (about 2" x 5") that houses the batteries and electronics. First, it is too large to fit most deadbolt/doorknob installations, and second it is not weatherproof so it must be on an interior side.I really don't know who could use this. It is suitable for a door with ONLY a deadbolt (no knob) and with one side protected from weather.
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