Is there a better front door peephole?
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In-door viewer installation
Chuck up a 2-3/8-in. hole saw and cut a large opening for a new door viewer. Screw it in place and see who's at the door from 7 ft. away.
Replace your old peephole with one of
the newer in-door viewers. It's a low-cost
solution that uses prisms and
a lens to project the visitor's image onto
a 2-in. screen. The large screen allows
you to see visitors from 5 to 7 ft. behind
the door. You can find in-door viewers with an internet search for “in-door viewer”.
You'll have to drill a new 2-3/8-in.
hole. Place it so the new hole eliminates
the existing hole at the same
time. You can probably leave the old
peephole in place while you drill the
new hole (to provide a firmer surface
and prevent pilot bit wandering). Make
sure the drill is level and drill until the
pilot bit comes out the other side of the
door. Then remove the hole saw and
drill from the opposite side (to prevent
splintering). You’ll also need to drill
two 1/8-in. holes for the retaining ring
anchor pins (use the template to mark
the location for the small holes). To finish
the installation, insert the viewer
and screw it onto the lens prism.
The new viewer provides a much
brighter image, but since it uses prisms,
be aware that the image will be flopped
left to right. As an added benefit, the
viewer optics prevent visitors from
peering into your house (a flaw in old-style
peepholes) or from noticing that
you're even using the viewer.