Digital door viewer 14mm standard
Yale digital door viewers display an image of the person who visits the door providing a safe way to identify visitors and potential bogus callers before opening this digital door viewer produces a very clear image on screen and allows easy operation with just a press of a button an automatic switch turns the viewer off after 10 seconds it fits a standard 14mm hole from a mechanical door viewer meaning that it can replace a mechanical door viewer without any additional work the viewer has a robu