GharExpert Door Viewershttp://www.gharexpert.com/category/1376/Door-Viewers-0.aspx?CatID=1376Door Viewers information at GharExpert.com. The Mini Scope door viewer is a unique 200 degree peephole that is designed to fit thin doors. Which are various types of door viewers for houses?http://www.gharexpert.com/articles/Door-Viewers-768/Which-various-types-door-viewers-houses_0.aspx?PL=2&ArticleID=768&CatID=1376The Mini Scope door viewer is a unique 200 degree peephole that is designed to fit thin doors. Digital Door Viewershttp://www.gharexpert.com/articles/Door-Viewers-1901/Digital-Door-Viewers_0.aspx?PL=2&ArticleID=1901&CatID=1376To keep watch on every visitor to your home and maintain records of undesirable persons, install door viewer at the entrance of your home. The door viewer takes videos and audios of the visitors to the house. Let’s know more features of digital door viewer.