Black and white doorphone,door phone,

CR450B   B/W VIDEO DOORPHONE
4" B/W CRT with high resolution and high contrast ratio
CCD or CMOS outdoor station to gain clear image
The out door station with night vision
Talk with visitor
Unlock the electric -controlled door lock
Monitor the station out of the door
Dimension:53.7*42.9*27.6CM   9PCS/CTN
               2790PCS/20FT         564PCS/40FT
               6570PCS/40FT HQ
SIZE: 78*105*28mm     256*261*138mm

Black and white doorphone

CR450B B/W VIDEO DOORPHONE
4" B/W CRT with high resolution and high contrast ratio...................