Features: 
Electronic peephole viewer is a new type household security product. 
It is different from the traditional electronic peephole viewer. 
It is equipped with LCD screen as the indoor window for observing visitors. 
More beautiful and safety. 
This product can not only be replaced in the existing electronic peephole viewer, but also simply installed on the new door. 
It can totally replace the traditional electronic peephole viewer 

Parameters: 
LCD screen size: 2.8 inch 
Power: 3 AAA batteries (Not included) 
Camera pixel: 300K pixel 
Fit for Door Thickness: 1.38 to 4.13inch 
The installation hole size: Φ0.7inch 
Operating temperature range: -25centigrade - +55centigrade 

Package contents: 
1 x Indoor 2.8" LCD monitor 
1 x Outdoor camera 
1 x Set of Accessories 
1 x User manual