home security columbus ohio
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 window
s 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.