WS4904P - DSC Wireless Motion Sensor

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DSC WS4904 Passive Infrared Motion Detector Multi-level signal processing and specially designed lenses deliver superior intruder detection and reliable long-term operation while
Brand: DSC
Part Number: WS4904P

Availability: In stock




No More False Alarms

This pet Immune DSC Wireless Motion detector is the perfect solution for avoiding false alarms from four-legged friends that trigger your alarm system while you're away at work. Most pet immune motion detectors are very good and will get the job done, but if you're looking for an extremely reliable, amazingly accurate and long-lasting sensor that you'll never have to worry about, then you want the Pet Immune PIR (passive infrared) DSC Wireless Motion detector.

Compatible with most DSC Wireless Alarm Systems, the DSC WS4904P is among the most technologically advanced detectors available.

Accurate Detection

This DSC motion detector is immune from pets weighing up to 60 lbs. (27 kg). The DSC WS4904P adapts to changing environmental conditions by adjusting critical detection parameters, meaning it will perform at a high level through cold winters and blazing hot summers. With DSC's patented Multi-Level Signal Processing (MLSP), this alarm accessory provides a more accurate detection of human IR (Infrared) energy over a broad range of temperatures.

Wireless Reliability

433 MHz technology features the latest low power RF (Radio Frequency) technology to extend battery life. With a long-life lithium battery, the DSC motion detector is capable of up to 9 years of functionality. With digital signal analysis, digital information is accurately understood and is not subject to signal degradation caused by amplification, noise, distortion or signal clapping. For as long as you need, the DSC Wireless Pet Immune PIR Motion Sensor achieves superior detection and false alarm prevention, consistently.

DSC WS4904P Motion Detector Features

  • Reliable 433 MHz technology
  • 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
  • High-traffic shutdown
  • Temperature compensation
  • PCB antenna
  • 1 long-life lithium battery included; capable of up to
  • 9 years of battery life
  • Sensitivity adjustment to configure the detector for "normal"
  • (high sensitivity) or "hostile" (low sensitivity) environments
  • RoHS compliant
  • FCC/IC, UL/ULC listed for North America;
  • CE compliant for Europe

Additional Info

Additional Info

Part Number WS4904P
What's in the box (1) DSC Wireless Pet Immune PIR Motion Sensor
Variant N/A


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Dimensions 4 1/4” x 2 1/2” x 2 2/16”
(108 mm x 63.5 mm x 54 mm)
Battery CR123A (3 V Lithium)
Battery Life 9 Years (Typical)
Coverage 40 ft x 40 ft (12 m x 12 m)
Fast Setting  
Operating Temperature -10 to 55 °C (14-131 °F)
Operating Humidity 5-93% RH