Date: Mon, 29 Dec 1997 20:02:21 GMT Server: Apache/1.0.5 Content-type: text/html Content-length: 2826 Last-modified: Wed, 04 Dec 1996 19:24:42 GMT Detectors
®
DETECTION SYSTEMS, INC.

DETECTORS
Detections Systems, Inc. offers a wide range of Sensors. There are three main types:
Passive Infrared Detectors:
A Passive Infrared Detector operates by detecting the change in energy that occurs when a body of one temperature passes by a background of another temperature within the detector's field of view. Special signal processing techniques enable the detector to determine whether a signal is caused by a person, or by some other, false alarm source. Interchangeable optics allow the protection area to be customized to meet the needs of the specific application.
Photoelectric Detectors:
Photoelectric beam detectors consist basically of a light transmitter and a separate receiver. The transmitter emits an invisible infrared beam to the receiver. If the beam is broken, the receiver signals an alarm.
TriTechTMPIR/Microwave:
Detection Systems' TriTech Detectors combine Dual Technology Passive Infrared with Microwave detectors. Microwave detectors generate microwave signals and detect either a reduction or distortion of received energy caused by an intruder.

(check our "special applications" page for Access Control, Glass Break & Safe & Vault detectors)



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