How Does a Home Security System Door Sensor Work?


Door Sensors

  • Some home security system door sensors are wired to an electric circuit within the house, and other home security systems today are wireless. However, whether they are wired or wireless, a home security system consists of motion detectors and sensors that are placed on the doorway and often the windows. Magnetic sensors are installed to secure the most susceptible exterior doorway and window openings. When an intruder enters your home by opening a door or window, the siren sounds, and the monitoring station is instantly alerted.

Magnets and Electricity

  • The magnet on the sensor keeps voltage flowing through the circuit area whenever the doors and windows are closed. However, when the system is activated and a door or window is opened, there is a break in the flow of the voltage to the circuit, and this causes the activation of the alarm. The security monitoring agency and police are quickly notified once this occurs. Modern-day security systems are actually capable of alerting the monitoring station of which door or window in particular has been breached.

Main Components

  • The main components of a home security system include the control keypad, a phone jack, a transformer, the battery, the alarm, and the window and door sensors. Home security systems are available as very sophisticated security systems that alert the security monitoring agency and police in case of a break-in. They can also be a simple system that sounds an ongoing alarm to frighten away the intruder when a break in occurs. Some home security systems involve placing sensors on the garage doors as well to prevent break-ins through the garage door openings. Regardless of whether a homeowner chooses a more sophisticated type home security system or just a simple one, either method can be an effective way to stop a burglary or intrusion into your home.

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