This Bell Surface Mount 4 Way Door Entry System is a comprehensive home security kit.
It contains four telephone intercoms that can be positioned throughout the house.
These are connected to a doorway surface intercom that is positioned on the exterior of the house.
The Bell Surface Mount 4 Way Door Entry System allows the user to identify the person calling at their door without having to open it.
This has useful safety benefits that are particularly useful for vulnerable people that live alone.
An electronic lock is also included, allowing the door to be remotely unlocked.
