ISM‑BLQ1 Blue Line Quad PIR Detector
INTRUSION ALARM SYSTEM - Detectors and Accessories
ISM‑BLQ1 Blue Line Quad PIR Detector


  • 11 m x 11 m (35 ft x 35 ft) broad coverage
  • EN50131-2-2 Grade 2 compliant
  • Dual sensor, quad element design (two separate pyroelectric elements)
  • Flexible mounting height from 2.3 m to 2.7 m (7.5 ft to 9 ft)
The ISM-BLQ1 Quad PIR Detector uses two individual sensors that operate like two PIRs in one. Each sensor processes signals separately. Both must activate to cause an alarm. This increases reliability, because false alarm sources such as noise spikes and small animals are ignored.

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