Although there is still no perfect system to keep the house safe from burglars, the market for home burglar alarms offers several options to keep out the alien’s friends.
The technology of these systems has improved but its principle of operation remains essentially the same: a sensor detects an intruder, it emits an acoustic signal and in some cases, the system alerts police or security company. We must understand that no matter how advanced it is an alarm system, this does not make our house into a place impregnable.