Access Control, traditionally used in business is a great utility for safety and security in the home.
For the home, the key advantage is being able to view and verify guests before you even open the door, ensuring your time is not wasted by cold calling sales or other unwanted visitors.
These systems also give property owners the ability to control access at specific times to key holders. Maintaining a logs of all activity on the system is invaluable for evidence gathering.
Systems includes: