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  2. Wireless security camera - Wikipedia

    en.wikipedia.org/wiki/Wireless_security_camera

    Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio. However, some wireless security cameras are battery-powered ...

  3. Closed-circuit television - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television

    Surveillance cameras on the corner of a building. Surveillance camera in a residential community. Closed-circuit television (CCTV), also known as video surveillance, [ 1 ][ 2 ] is the use of closed-circuit television cameras to transmit a signal to a specific place, on a limited set of monitors.

  4. Home security - Wikipedia

    en.wikipedia.org/wiki/Home_security

    A control panel is implemented to arm and disarm a home security system. The control panel is the main connection to the alarm company monitoring a home. It typically features a touchpad or buttons to easily maneuver the system, and some newer systems also feature voice control or wireless remotes (key fobs). [5]

  5. Costco says its new member ID scanners at entrances are good ...

    www.aol.com/costco-says-member-id-scanners...

    Costco installed ID scanners at more than half of its US warehouses and says the system is working. CEO Ron Vachris said the devices help things run more smoothly — for the company and its ...

  6. Closed-circuit television camera - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television...

    Vandal dome-style camera. A closed-circuit television camera is a type of surveillance camera that transmits video signals to a specific set of monitors or video recording devices, rather than broadcasting the video over public airwaves. The term "closed-circuit television" indicates that the video feed is only accessible to a limited number of ...

  7. IP camera - Wikipedia

    en.wikipedia.org/wiki/IP_camera

    Connection. Ethernet, Wi-Fi. An Internet Protocol camera, or IP camera, is a type of digital video camera that receives control data and sends image data via an IP network. They are commonly used for surveillance, but, unlike analog closed-circuit television (CCTV) cameras, they require no local recording device, only a local area network.

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