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  2. Perimeter intrusion detection - Wikipedia

    en.wikipedia.org/wiki/Perimeter_intrusion_detection

    A fence-mounted perimeter intrusion detection system installed on a chain link fence. A perimeter intrusion detection system (PIDS) is a device or sensor that detects the presence of an intruder attempting to breach the physical perimeter of a property, building, or other secured area.

  3. Perimeter surveillance radar - Wikipedia

    en.wikipedia.org/wiki/Perimeter_Surveillance_Radar

    A good PSR should have a designed false alarm rate of two or less false alarms per day. (A false alarm should not be confused with a nuisance alarm caused by, for example, an animal). Characteristics of some perimeter surveillance radar systems: Carrier frequencies range from C-band (about 5 GHz) to W band (about 77 GHz).

  4. Ford Five Hundred - Wikipedia

    en.wikipedia.org/wiki/Ford_Five_Hundred

    The Five Hundred ended production on April 12, 2007, as did the Mercury Montego and Ford Freestyle. [25] For the 2007 North American International Auto Show , Ford introduced a mid-cycle 2008 update of the Five Hundred and Montego; the new sedans had front and rear fascia styling, new interiors, and new powertrains with a 263 hp 3.5L V6 and a ...

  5. New panic alarm system saved countless lives during shooting ...

    www.aol.com/news/panic-alarm-system-saved...

    Updated September 6, 2024 at 12:08 AM. ... Smith said the panic alarm system at Apalachee, powered by Georgia-based safety solutions company Centegix, has only been in place at the school for ...

  6. Security alarm - Wikipedia

    en.wikipedia.org/wiki/Security_alarm

    The alarm system is required to have a maintenance check carried out every 6 – 12 months. In the UK, 'Audible Only' intruder alarm systems require a routine service visit once every 12 months and monitored intruder alarm systems require a check twice in every 12-month period.

  7. Perimeter security - Wikipedia

    en.wikipedia.org/wiki/Perimeter_security

    Most perimeter protection solutions in the past have been large-scale, stationary solutions. This causes a great challenge for today's mobile industry and military. With smaller, rapid deployment forces the norm for most of today's military engagements, large walls, high fences, and other permanent solutions aren’t always effective.