The Mitzen Digital Peep Hole Viewer is designed to replace the traditional peep hole on your front door, so you can see who is calling before you let them in.
It features an LCD display, and a tiny camera that is placed where a standard peep hole goes on the other side of your door. Instead of those distorted images, this little device provides a digital image on your screen,it has a 1.3 megapixel camera. There is even the option to zoom, so you can better examine the faces of visitors. Runs on three AA batteries.