Voice Activated Radio Dispatched Alarm

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Details

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A Voice Activated Radio Dispatched Alarm, or VARDA-alarm, is a type of burglar alarm that, when activated or ''tripped'', broadcasts the type and location of alarm over the local police radio frequency using a pre-recorded audio message.Burglar (or intrusion), fire, and safety alarms are electronic alarms designed to alert the user to a specific danger. Sensors are connected to a control unit via low-voltage wiring or a narrowband RF signal which is used to interact with a response device. The most common security sensors are used to indicate the opening of a door or window or detect motion via passive infrared (PIR). New construction systems are predominately hardwired for economy.

Weitere Informationen

  • Allgemeine Informationen
    • GTIN 09786130590819
    • Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
    • Genre Technik
    • Anzahl Seiten 108
    • Größe H220mm x B220mm
    • EAN 9786130590819
    • Format Fachbuch
    • Titel Voice Activated Radio Dispatched Alarm
    • Herausgeber Betascript Publishing

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