Stainless steel chassis 
 Resolution: 420 lines 
 Camera: 1 / 3 "CCD or CMOS 
 Visual function of the host with automatic infrared night vision 
 Surface Size: 128 * 160mm 
 Installation size: 118 * 142 * 36mm 
 (A) the use outside the host 
 1, the visitors pressed the doorbell button, the door of room can hear the sweet tone. 
 2, through the microphone and the room can make a call. 
 3, with infrared illumination by itself, even at night, no lighting in the outdoor installation, but also shows visitors a clear picture.