security companies in baltimore
These three components alone can range from minimalistic to advanced. The control unit is the main operating panel for your
home security system. This unit receives the signals from the sensors placed around your home, and triggers the alarms or contacts the home security center to notify them of any trouble whenever appropriate. The control unit may be power
ed 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.