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  2. Driveway alarm - Wikipedia

    en.wikipedia.org/wiki/Driveway_alarm

    The sensor is used to detect people or vehicles on the driveway and the receiver is the device which alerts the user or owner to this detection. Wireless driveway alarms consist of three components, the sensor, receiver and a transmitter which sends the wireless alert signal to the receiver. [citation needed]

  3. Motion detector - Wikipedia

    en.wikipedia.org/wiki/Motion_detector

    A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.

  4. Security alarm - Wikipedia

    en.wikipedia.org/wiki/Security_alarm

    They are designed to alert residents to unexpected visitors, intruders, or deliveries arriving at the property. Types of driveway sensors include magnetic and infrared motion sensors. Driveway alarms can be found in both hard-wired and wireless systems. They are common in rural security systems as well as for commercial applications.

  5. 6 Electronics Retirees Should Buy From Costco on Black Friday

    www.aol.com/finance/6-electronics-retirees-buy...

    From Nov. 18 to Dec. 2, you can purchase an 8-piece Ring Alarm home security system for $119.99. This is $80 off the regular price. ... range extension, motion detector, panic button and three ...

  6. Passive infrared sensor - Wikipedia

    en.wikipedia.org/wiki/Passive_infrared_sensor

    A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors . PIR sensors are commonly used in security alarms and automatic lighting applications.

  7. Home security - Wikipedia

    en.wikipedia.org/wiki/Home_security

    Motion sensors create zones which cannot be accessed without sounding an alarm. Most cameras do now have a motion detection function, with some brands having thermal detection so they only activate when sensing a heat signature. This function is used so cameras do not pick up false alarms from trees blowing in the wind. [11]

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