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 robust weather resistant construction Specifications Size 128 x 68 x 15mm Screen 32in LCD Viewing angle 105° Support door thickness 38mm - 110mm Cylinder drill diameter 14mm Supplied with 2 x AAA batteries
