Digital Door Viewer With these new innovative Yale Digital Door Viewers you can programme your security to do what you want, when you want. These new convenient innovative solutions are not only exceptionally easy to install but the technology makes extending and even expanding your home security as simple as possible. Clever stuff. Our Digital Door Viewer is available with a removable SD card that takes an image of the person who visits your door – a great way to identify visitors when required – and a great deterrent for bogus callers! Here, Yale presents two options of the Digital Door Viewer; Standard 14mm Digital Door Viewer Recording 14mm Digital Door Viewer Our Yale door viewers are not only convenient intelligent products but they have unique features to give you peace of mind when the dark nights are looming. We at Yale strive to provide security solutions that not only peace of mind but above all convenience at your fingertips with these affordable cutting edge products from Yale, the brand you’ve trusted for almost 170 years.