enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Glass break detector - Wikipedia

   en.wikipedia.org/wiki/Glass_break_detector

   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 ...

3. Home security - Wikipedia

   en.wikipedia.org/wiki/Home_security

   Glass break detectors are usually installed near glass doors or a window front of a store. This equipment uses a microphone to detect when a pane of glass is broken or shattered. By monitoring the sound and vibrations the alarm only reacts to sounds above a certain threshold to avoid false alarms. [5]

4. Security alarm - Wikipedia

   en.wikipedia.org/wiki/Security_alarm

   To reduce false alarms this type of detector is usually combined with a passive infrared detector or similar alarm. Compared to the monostatic, the bistatic units work over longer distances: typical distances for transmitter-receivers up to 200 m for X-band frequencies and up to 500 m for K-band frequencies. [3]

5. Window security - Wikipedia

   en.wikipedia.org/wiki/Window_security

   Wired or wireless security alarms can be designed to warn intrusions through windows, using sensors like glass break detectors and contact magnetic sensors [5] [6] Security lighting (including those systems with automatic light switch and timers) is useful to make evident an attempt of unauthorized access [7]

6. False alarm - Wikipedia

   en.wikipedia.org/wiki/False_alarm

   The term "false alarm" is actually a misnomer, and is regularly replaced by the term "nuisance alarm". When a sensor operates, it is hardly false [opinion], and it is usually a true indication of the present state of the sensor. A more appropriate term is nuisance, indicating that the alarm activation is inconvenient, annoying, or vexatious.

7. Rep. Jamaal Bowman: Why did he pull a fire alarm, and ... - AOL

   www.aol.com/news/rep-jamaal-bowman-why-did...

   For premium support please call: 800-290-4726 more ways to reach us

8. Dying To Be Free - The Huffington Post

   projects.huffingtonpost.com/dying-to-be-free...

   The last image we have of Patrick Cagey is of his first moments as a free man. He has just walked out of a 30-day drug treatment center in Georgetown, Kentucky, dressed in gym clothes and carrying a Nike duffel bag.

9. Physical security - Wikipedia

   en.wikipedia.org/wiki/Physical_security

   Alarm systems work in tandem with physical barriers, mechanical systems, and security guards, serving to trigger a response when these other forms of security have been breached. They consist of sensors including perimeter sensors , motion sensors , contact sensors, and glass break detectors .