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2. The common peephole in anti-theft door consists of two concave and convex lens. When seeing outside from inside door, the image outside will fall on the lens and finally get a bigger image. But because of lens, it is easy to be peeped

 

3. Digital Electrical peephole plays an important role in home anti-theft door monitor and it is composed of digital camera, mainframe, display screen. It collects images by camera and then show images on screen. According to user's need, take photos. In fact, it is a digital camera. It solves the problem of the old with poor eyesight or the young, . Our product adopts camera instead of the common peephole, in fact, the outside images have already been monitored and user also can see outside by screen to improve the safety.

 

4. When install, user need not change the size and take out the common peephole then install new product. It is wireless, beautiful and convenient.