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  2. Smart lock - Wikipedia

    en.wikipedia.org/wiki/Smart_lock

    A smart lock is an electromechanical lock that is designed to perform locking and unlocking operations on a door when it receives a prompt via an electronic keypad, biometric sensor, access card, Bluetooth, or Wi-FI from a registered mobile device. These locks are called smart locks because they use advanced technology and Internet ...

  3. Medical alarm - Wikipedia

    en.wikipedia.org/wiki/Medical_alarm

    A medical alarm [1] is an alarm system designed to signal the presence of a hazard requiring urgent attention and to summon emergency medical personnel.Other terms for a medical alarm are Personal Emergency Response System (PERS) or medical alert.

  4. Security alarm - Wikipedia

    en.wikipedia.org/wiki/Security_alarm

    The redundant dialer may be connected to a second communication path, or a specialized encoded cellular phone, radio, or internet interface device to bypass the PSTN entirely, to thwart intentional tampering with the phone lines. Tampering with the line could trigger a supervisory alarm via the radio network, giving early warning of an imminent ...

  5. Emergency alert test – live: Government reveals why phone ...

    www.aol.com/emergency-alert-test-live-millions...

    On an iPhone, open up the Settings app and type “emergency alerts” in the search bar. That should bring up the option to turn off “Severe alerts” and Emergency alerts”. ... Tory former ...

  6. Video door-phone - Wikipedia

    en.wikipedia.org/wiki/Video_door-phone

    Video door entry consists of both outside and indoor elements: an outdoor panel on the outside, an electronic lock release, and an indoor monitor. The outdoor panel or street panel is installed beside the entrance door or gateway and incorporates different elements ready for use in any climate conditions: one or several pushbuttons to make the call (usually one per home or apartment), a micro ...

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