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Passive glass break detector. A glass break detector is a sensor that detects if a pane of glass has been shattered or broken. [1] These sensors are commonly used near glass doors or glass storefront windows. They are widely used in electronic burglar-alarm systems. The detection process begins with a microphone that picks up noises and ...
Typically, the most intense frequencies generated are between 3 and 5 kHz, depending on the type of glass and the presence of a plastic interlayer. Seismic glass-break detectors feel these shock frequencies and in turn generate an alarm condition. Window foil is a less advanced detection method that involves gluing a thin strip of conducting ...
Sensormatic Electronics Corporation was purchased by Tyco International in 2001. The acquisition was executed by a merger of Sensormatic with a subsidiary of Tyco. Sensormatic is frequently called by the name of its parent company ADT, formerly ADT/Tyco. A product from Sensormatic is the Supertag, a hard loss prevention tag. The Supertag took ...
In Europe, Australia, New Zealand and Asia, pull stations are generally not used; instead, a manual call point is used, which is usually referred to as an MCP, call point, break-glass point, or Fire Point within the fire protection industry and as a "transmitter" in Japan. They are used to allow building occupants to signal that a fire or other ...
ADT Inc., formerly The ADT Corporation, is an American security company that provides residential and small business electronic security, fire protection, and other related alarm monitoring services throughout the United States. The corporate head office is located in Boca Raton, Florida. [5]
A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.
Glass This article is within the scope of WikiProject Glass , a collaborative effort to improve the coverage of glass on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
[3] [4] Devices may not have a dedicated Reset button, but have the user hold the power button to cut power, which the user can then turn the computer back on. [5] Out-of-band management also frequently provides the possibility to reset the remote system in this way.