Device for controlling the opening and closing of doors and for displaying same

摘要

Apartment lease control. The invention concerns a system for controlling the opening and closing of an apartment or a house door enabling to verify the premises are occupied or not in the owner's absence, for example, when an agency is responsible for the lease and the owner has no proof of the agency's good faith. It can also provide interesting data concerning the real time spent by the person in charge of watching and cleaning the premises.