cameras surveillance system
The control unit may be powered by electricity that runs in your home, or by battery power. Some systems are set up so that if the power in your house goes out, a battery backup will kick in and run the control unit until power is restored. Once the power flips back on, the backup battery system will automatically recharge. The sensors, or switches, are the second part
of the security system. The most basic alarm systems have these sensors fitted
in the frames of windows and doors so that if they are opened, the circuit is broken and the alarm is triggered. Some are installed in a way that allows them to detect if someone tries to break in through a window by shattering the glass or removing one of the panes. Others may detect motion inside or outside of the home. The third essential part of a home security system is the alarm. There are many different options as far as which type of alarm you can have installed. Some alarms are set to trigger a loud siren in order to deter potential burglars after they attempt to get in to your home. You may also choose to install an alarm that will automatically contact a monitoring service, who will then attempt to contact you to see what the situation is, and can contact the proper authorities if necessary.