SIMPLE INSTALLATION: Suitable for 1-1/2" to 2-1/4" (37mm-55mm) thick doors, drill 5/8"(16mm) diameter hole in suitable position, insert the viewer into the hole then screw two sides together.. WIDE ANGLE: 220 Degrees wide viewing angle. It offers a crystal clear view with an extraordinary wide angle coverage.. COVER: With the cover in place, People outside cannot see through the viewer into your home, offering the high level of for your protection.. APPLICATION: Perfect for home, office, hotel and front door where you need to see, monitor who is outside your door..
