DSC WS4904P: Wireless Passive Infrared Detector, Bravo 3D Hardwire, 433 MHz Technology, High-Traffic Shutdown, Pet Immunity to 27 kg, Lithium Battery Included


DSC WS4904P Wireless Passive Infrared Detector



Among the most technologically advanced detectors available, the WS4904 achieves superior detection and false alarm prevention through digital signal analysis. Digital information is more accurately analyzed using software and is not subject to signal degradation caused by amplification, noise, distortion or signal clipping. The detector’s technology adapts to changing environmental conditions by adjusting critical detection parameters to provide improved consistency of detection over all temperature ranges. Pet owners looking to be protected from false alarms can choose the WS4904P model version, a detector that is immune from pets weighing up to 60 lbs (27 kg).




  • Based on the Bravo 3D hardwire motion detector
  • Reliable 433 MHz technology
  • High-traffic shutdown
  • Pet immunity up to 27 kg (60 lbs)
  • Digital signal analysis for consistent detection throughout the coverage pattern
  • Exceptional catch performance at elevated temperatures
  • Patented Multi-Level Signal Processing (MLSP) for accurate detection of human IR energy over a broad range of temperatures
  • Temperature compensation
  • PCB antenna
  • 1 lithium battery included
  • Sensitivity adjustment to configure the detector for normal (high sensitivity) or hostile (low sensitivity) environments
  • RoHS compliant
  • Approval Listings: European CE Directives (EMC, R&TTE, LVD), INCERT (Belgium), NCP (Holland), IMQ (Italy) Livello 1, SBSC (Sweden) Larmklass R, EN50131-2-2, EN50131-6, Grade 2, Class II Environment, ICASA (South Africa), FCC/IC, UL/ULC

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