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  2. Anti-theft system - Wikipedia

    en.wikipedia.org/wiki/Anti-theft_system

    Anti-theft systems protect valuables such as vehicles and personal property like wallets, phones, and jewelry. [1] [2] [3] They are also used in retail settings to protect merchandise in the form of security tags and labels. [4] Anti-theft systems include devices such as locks and keys, RFID tags, and GPS locators.

  3. Security alarm - Wikipedia

    en.wikipedia.org/wiki/Security_alarm

    Reed Switch. The hermetically sealed reed switch is a common type of two-piece sensor. This switch operates with an electrically conductive switch that is either normally open or normally closed when under the influence of a magnetic field in respect to proximity to the second piece, which contains a magnet. When the magnet moves away from the ...

  4. Immobiliser - Wikipedia

    en.wikipedia.org/wiki/Immobiliser

    The electric immobiliser/alarm system was invented by St. George Evans and Edward Birkenbeuel and patented in 1919. [2] They developed a 3x3 grid of double-contact switches on a panel mounted inside the car so when the ignition switch was activated, current from the battery (or magneto) went to the spark plugs allowing the engine to start, or immobilizing the vehicle and sounding the horn. [3]

  5. Outlawed anti-drone radio jammers are being marketed on ... - AOL

    www.aol.com/news/anti-drone-companies-market...

    The potential market for anti-drone systems such as radio frequency jammers includes large corporations and organizations that are worried about drone terrorism but are not legally allowed to use ...

  6. Anti-hijack system - Wikipedia

    en.wikipedia.org/wiki/Anti-hijack_system

    An anti-hijack system is an electronic system fitted to motor vehicles to deter criminals from hijacking them. Although these types of systems are becoming more common on newer cars, they have not caused a decrease in insurance premiums as they are not as widely known as other more common anti-theft systems such as alarms or steering locks .

  7. Door security - Wikipedia

    en.wikipedia.org/wiki/Door_security

    This type of door often comes with a wooden finish to maintain a natural aesthetic in their external appearance. Security tests by Consumer Reports Magazine in the 1990s found that many residential doors fail or delaminate when force is applied to them. Solid wood doors withstood more force than the very common metal skinned wood-edged doors ...