2nd version of intelligent door viewer is available
Source: Cathy
Date: 2012/06/11
The 2nd generation of door viewer is available now. And the difference between 1st & 2nd version is: 2nd version is with infrared sensor and can detect visitor's movement in front of the door automatically, no need to press the button any more.
And any vicious stay in front of the door will be recorded automatically and trigger alarm sound to frighten.
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