Features:

1) 13.8mm super small diameter, which is suitable to all doors with peephole. No need to drill hole, just install directly; 2) 0.008low lux mini camera, can work under low light
2) 90 degree broad view angle
3) 0.008lux extremely low illumination, which makes it can clearly see the visitor even under dim light
4) Brass material, noble and durable;
5) Directly connect BNC cable to TV/ monitor/ DVR, it's very quick & easy.

Installation:

1. Use one coin or other tool to uninstall the original optical viewer;
2. Unscrew copper sleeve off and pass lens cable through peephole from outside to inside of door. Set lens cable into sleeve; Screw sleeve into peephole inside of door. (Pay attention to horizontal direction of lens) ;
3. Connect lens cable with BNC cable and fix it well. Then connect BNC cable with TV/ monitor/ DVR to start monitoring.

AV cablex1 (RCA or BNC) , AC adapterx1, Manualx1