installation mode:wall-hanging mode
outline dimension:230X140X22CM
be equipped with one way immediate-alarming security area
support parallel connection of indoor unit
it can be connected to secondary confirmation outdooor unit
monitoring,calling,alarming and unlocking function
colorful 7"display screen
hands free video intercommunication
video door phone outdoor unit:use with indoor unit,have the function of monitoring,calling,alarming and unlocking