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  2. Standards for Alarm Systems, Installation, and Monitoring

    en.wikipedia.org/wiki/Standards_for_Alarm...

    The alarm transmission methods covered under UL 365 can be categorized under standard line security or encrypted line security. The systems are required to operate within the limits of Class 2 remote control and signal circuits as defined by the National Electrical Code, NFPA 70.

  3. Faraday (company) - Wikipedia

    en.wikipedia.org/wiki/Faraday_(company)

    They also rebranded coded fire alarm stations from Holtzer-Cabot. From the 1930s to the 1960s, Faraday was known as " Sperti -Faraday", and the company moved to Adrian, Michigan . [ 1 ] From the late 1960s up until present, many companies rebranded Faraday's popular line of notification appliances, including Simplex , Standard Electric Time ...

  4. Leak detection - Wikipedia

    en.wikipedia.org/wiki/Leak_detection

    A leak appearing within an analytic region (a rule added to the camera) is immediately analyzed for its attributes, including thermal temperature, size, and behaviour (e.g. spraying, pooling, spilling). When a leak is determined to be valid based on set parameters, an alarm notification with leak video is generated and sent to a monitoring station.

  5. Security alarm - Wikipedia

    en.wikipedia.org/wiki/Security_alarm

    A second video solution can be incorporated into a standard panel, which sends the central station an alarm. When a signal is received, a trained monitoring professional accesses the on-site digital video recorder (DVR) through an IP link to determine the cause of the activation.

  6. Secutron - Wikipedia

    en.wikipedia.org/wiki/Secutron

    Secutron has been manufacturing fire alarm systems since 1973, including conventional and intelligent fire alarm control panels, fire alarm networks, fire and security integration systems, and fire alarm accessories. Company is certified to the ISO 9001:2008 standards and guidelines. [2]

  7. Water detector - Wikipedia

    en.wikipedia.org/wiki/Water_detector

    Electronic components used to make a simple water detector: battery, resistor, transistor, water sensor and piezoelectric buzzer for audible alert A water detector is an electronic device that is designed to detect the presence of water for purposes such as to provide an alert in time to allow the prevention of water leakage.

  8. Explosive gas leak detector - Wikipedia

    en.wikipedia.org/wiki/Explosive_gas_leak_detector

    An explosive gas leak detector is a device used to detect explosive gas leaks in enclosed spaces. Typically, a local alarm will be triggered, and optionally a remote alarm may also be connected. Typically, a local alarm will be triggered, and optionally a remote alarm may also be connected.

  9. Knight Security Systems - Wikipedia

    en.wikipedia.org/wiki/Knight_security_systems

    The company's security solutions include access control, video surveillance, and intrusion as well as fire detection systems. [ 1 ] In 2009, Knight Security secured a $12.5 million contract with Texas Department of Aging and Disability Services (DADS) to install over 3,200 high-definition video surveillance camera systems in 335 buildings at 12 ...

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