Choosing a GEO Door Viewer
A door viewer, often called a peephole, is installed through the door so the occupant can see the area outside without opening the door. GEO viewers in this collection are offered with different viewing angles, bore requirements, and door-thickness ranges, so the existing door preparation should be checked before choosing a replacement.
Viewing angle affects how much of the area outside the door can be seen from the interior. A 180-degree viewer provides a wider field than a 160-degree model, but the best choice also depends on the installation height, door thickness, and the viewer's optical design. Review the product specifications rather than relying on angle alone.
Bore diameter is a critical fit measurement. The active GEO viewers use different required bore sizes, so measure the existing hole before replacing an old viewer. Also confirm that the threaded body or extension range supports the door thickness without leaving the viewer loose or preventing the two halves from tightening correctly.
Selected GEO viewers are listed for 20-minute fire-rated applications. Where the door is part of a rated assembly, use only a viewer with the appropriate listing and confirm that the complete installation preserves the requirements of the opening. Follow the manufacturer's installation information and any applicable door-assembly requirements.
Finish and trim size can be considered after bore and door-thickness compatibility are confirmed. For replacement work, a viewer with suitable interior and exterior trim dimensions can help cover the existing preparation cleanly.
