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The door viewer is great, performs as claimed. Handle it very gently, it has precision optics. I suggest you have a small contractor install it. The required hole saw is big. Much bigger than for a residential door knob or dead bolt lock. Installation was easy but now I spent about as much on special tools (the hole saw) as I did on the viewer, and I own a 2 3/8 hole saw which I never expect to use again.
Rating:  [5 of 5 Stars!] |
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