The other type of alarm system is called a passive system.
Whatever type of alarm you fit, make sure the red "bell box" is highly visible.
In order to improve the situation for the operator, some type of alarm reduction is needed.
With this type of alarm, contacts are installed on all entry points, doors and windows, throughout the house.
The average homeowner usually cannot afford this type of alarm unless he can write it off as a business expense.
Another type of alarm is actuated by a photoelectric cell; when smoke darkens the room slightly, the alarm is activated.
This type of alarm system is reliable and very sophisticated; it must be installed by technicians employed by the guard service.
If no one answers, the company representative calls the police or fire department, or the client or another designated contact person, depending on the type of alarm reported.
Either type of alarm can be instantly shut off from the console by those who know the private access code that was fed into the console when it was installed.
In 74 of these attempts, the birds changed the type of alarm they were using.
