Sell video door phone @China (Mainland)

4 pin connector，7" digital high-resolution screen,call , phone , lock ,monitor , disturb,24 rings for choice,200 meters  distance  ,voice /brightness/color adjust,color video camera , IR night vision , Flexible combination,can make as 1 outdoor unit to 8 indoor unit, 2 outdoor units to 8 indoor units 

Post by Bet Guo    Security & Protection    @2012-04-08 13:08:42