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Passive Infrared (PIR) Detectors

• Passive infrared is detecting the slightest changes of thermal radiation emitted by any object or body having a surface temperature above the absolute zero    (-273°C). The intensity of the radiation depends on the surface temperature, the size and structure of a target but not its color or lighting conditions.
  

• Computer designed optical systems provide excellent uniformity in coverage over the full range of up to 100m (330 ft) and more for human intruders while sophisticated signal processing reduces nuisance alarms caused by small animals or moving vegetation.
  

• Passive operation enables single ended configuration, providing cheaper and simpler installation and alignment compared to systems requiring transmitter and receiver. This makes PIR detectors an ideal complement to CCTV systems including video motion detection.
  

Outdoor Infrared Detection

Many of today’s security applications require easy

to use, accurate and stable outdoor detectors for perimeter protection and volumetric area coverage.

The use of exterior motion detection techniques are employed in many facilities to help accentuate the effectiveness of video surveillance.