Here’s another way to replace that peephole with something a little more hi-tech. There are several different models and brand names with these, you just have to find the one that’s best for your home. With this you have a large display showing you who is on the other side of the door. Likely with this no one will be able to use a reverse peephole viewer on your door either. Not that everyone has them, but if you’re into conspiracy theories, it’s one way to make sure no one can view what’s on the inside of your house from the peephole.
Installation is said to be extremely easy and apparently the design of the peephole and LCD panel would make it extremely difficult for this to be stolen. The LCD panel itself has a protective lens cover and there are no directly accessible fasteners, wires or connectors. The best perk with these is that you get an expanded view, instead of the usual distorted short view. Unfortunately, it’s highly questionable if it’s worth it, given the $399 price tag.