The Stanley N330-712 peephole-door viewer gives you the ability to effectively screen visitors from behind the safety of a locked door. The N330-712 has been designed to accommodate doors with thickness ranging from 1-3/8 -Inch to 2-1/8-Inch. It is constructed from a beautiful polished solid brass and comes with a set of precision ground glass lens that offer you 200 degrees of viewing coverage. Click here for the Top 10 Best Peepholes and Door Viewers.
Unlike the traditional door peephole that create a vast blind spot in which the bad guys can easily hide in ambush, the Stanley N330-712 eliminates that problem and allows you to clearly see everything.
Even at night with only the street light on, visibility is much better than I anticipated and I can see well enough to actually recognize someone if they stand back somewhat away from the doorway. If the motion detector spot comes on, and you’re messing’ where you should not, I can see you, recognize you, and you just got caught. This is a good product and price is very reasonable. I am more than satisfied with my choice.