Dahua ARD2251E-W2(868)

Airshield Wireless Alarm External Triple-Tech PIR/Microwave Detector

Wireless outdoor triple-tech motion detector combining PIR and microwave detection with anti-masking protection, up to 15m detection range, pet immunity, White

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Key Features

  • Wireless outdoor triple-tech motion detector using PIR; microwave; and intelligent detection algorithms
  • Detection range up to 15m; 90° coverage for reliable outdoor area protection
  • Anti-masking detection protecting against intentional obstruction or tampering
  • Pet immunity reducing false alarms from animals up to 40kg and 80cm height
  • Automatic temperature compensation maintaining detection accuracy in outdoor environments
  • Microwave frequency 24GHz enhancing detection stability and reducing false alarms
  • Three-level sensitivity adjustment for flexible installation environments
  • Moving detection and tamper protection preventing device removal or interference
  • Built-in temperature monitoring for environmental awareness
  • Two-way wireless communication with frequency hopping ensuring stable transmission
  • AES128 encryption protecting secure wireless communication
  • Wireless range up to 1600m in open space for flexible outdoor installation
  • Cloud update support with automatic recovery ensuring reliable operation
  • IP66-rated weatherproof design for outdoor installation
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