The Brinno 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.
The Brinno Digital Peep Hole Viewer features a button on the front that to press to reveal who is at the door, and according to the manufacturer two AA batteries will give you 1,700 peeps, and each one last for 10 seconds, the unit then switches itself off to save battery power.
The Brinno Digital Peep Hole Viewer will retail for about $138, it looks like it is only available in Australia at the moment, there is no word on when we might see it in the US and Europe.
Product Page via Slippery Brick, Dvice, Oh Gizmo