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Pir sensor with double twin optics

Velleman HAA54: PIR Motion Sensor with Double Twin Optics

Velleman HAA54

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The Velleman HAA54 Double-Twin Optics Motion Detector

The HAA54 contains two passive infrared sensors plus a special lens. This combination helps eliminate false alarms from pets and critters and just alerts you know when an intruder has entered.

Status indicator will blink for two minutes when powering up. The alarm activiation has a delay of just 2–3 seconds. Readjust the angle of detection internally, without having to dismount your HAA54. Tamper switch technology will set off alarm if the front is removed.



  • Detection method: alternating polarity, 2 pyro-optic elements, passive infrared
  • Pulse count: instant response or 2 pulses within 12 seconds
  • Walk test LEDs: CH1, CH2 and alarm indicators
  • Alarm output: relay NC 28V DC 0.1A
  • Power supply: DC 12V (DC 9-16V) / 15mA typ.
  • Operating temperature: 14°F to 131°F with temperature compensation
  • Dimensions: 5" x 2.5" x 1.8"
  • Weight: 85g


  • Double-twin-optics detection technology
  • SMD-technology for greater EMI and RFI immunity
  • Automatic temperature compensation
  • Fast or pulse count response for difficult environments
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User manual
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 Warning: this product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov/product