DSC WS4904P Wireless Motion Sensor - Infrared PIR - Pet Immunity up to 60 lbs - 40 x 40 ft Coverage - 9-Year Battery
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Product Features
Technical Overview
The WS4904P employs patented Multi-Level Signal Processing (MLSP) technology to accurately distinguish human infrared energy from environmental factors across a broad temperature range. This ensures consistent detection performance even in challenging conditions, with digital signal analysis maintaining reliability throughout the entire coverage pattern.
Temperature compensation and a PCB antenna enhance signal stability, while high-traffic shutdown functionality prevents false alarms in busy areas. The sensor includes sensitivity adjustment settings for 'normal' (high sensitivity) and 'hostile' (low sensitivity) environments, allowing customization based on installation requirements.
Relevant factors for this section include Connectivity Technology, Wireless Technology, Passive Infrared Sensor (PIR), Height. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The DSC WS4904P delivers precise motion detection with advanced features that reduce false alarms and extend operational life. Its pet immunity capability allows secure homes with animals without compromising security coverage.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Extended Battery Life, Advanced Signal Processing.
Extended Battery Life
The included lithium battery supports up to 9 years of maintenance-free operation, reducing long-term ownership costs and minimizing service interruptions.
- Long-life lithium cell
- Low power consumption
- Battery included
Advanced Signal Processing
Multi-Level Signal Processing (MLSP) and digital analysis ensure accurate human detection while filtering out environmental interference across varying temperatures.
- MLSP technology
- Digital analysis
- Temperature compensation
Deployment / Use Cases
The WS4904P is ideal for integration into wireless security systems where reliable motion detection is required without the complexity of wired installations. Its compact size and wireless operation make it suitable for retrofitting existing properties or new construction projects.
Common applications include residential entryways, commercial corridors, retail spaces, and office environments. The pet immunity feature makes it particularly valuable for homes with cats or dogs, while the sensitivity adjustment allows optimization for high-traffic commercial areas or quieter residential settings.
Relevant factors for this section include Connectivity Technology, Wireless Technology, Passive Infrared Sensor (PIR), Height. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Physical Profile
With dimensions of 4.25 inches in height, 2.50 inches in width, and 2.03 inches in depth, the WS4904P presents a low-profile design that blends discreetly into installation environments. The white housing is suitable for most interior spaces, and the compact footprint allows placement in corners, hallways, or entry points without obtrusive visibility.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 4.25" (107.95 mm), 2.50" (63.50 mm), 2.03" (51.44 mm). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 2.50" (63.50 mm)
- Depth
- 2.03" (51.44 mm)
- Height
- 4.25" (107.95 mm)
Highlights
- Wireless passive infrared motion sensor with 433 MHz technology
- Pet immunity for animals up to 60 lbs (27 kg)
- 40 ft x 40 ft (12 m x 12 m) detection coverage area
- Multi-Level Signal Processing (MLSP) for accurate human detection
- Up to 9-year battery life with included lithium battery
- Sensitivity adjustment for normal or hostile environments
- Temperature compensation and digital signal analysis
- Compatible with DSC MAXSYS, Envoy, and PowerSeries systems
- Compact design: 4.25" H x 2.50" W x 2.03" D
- RoHS compliant for environmental safety
Specifications
| Specifications | |
|---|---|
| Manufacturer | Johnson Controls |
| Manufacturer Part Number | WS4904P |
| Brand Name | DSC |
| Product Model | WS4904 |
| Product Name | WS4904 Motion Sensor |
| Product Type | Motion Sensor |
| Technical Information | |
| Connectivity Technology | Wireless |
| Wireless Technology | Infrared |
| Passive Infrared Sensor (PIR) | Yes |
| Physical Characteristics | |
| Height | 4.25" (107.95 mm) |
| Width | 2.50" (63.50 mm) |
| Depth | 2.03" (51.44 mm) |
| Miscellaneous | |
| Additional Information | Wireless Passive Infrared Detector with Pet Immunity (NA Baud Rate) Reliable 433 MHz technology WS4904P model version provides pet immunity up to 60 lbs (27 kg) 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 Coverage 40 ft x 40 ft (12 m x 12 m) |
| Compatibility | MAXSYS Wireless Receiver PC4164-433 Fixed-Message LCD Keypad with Integrated Wireless Receiver RF5501-433 Envoy LCD Self-Contained Wireless Security System NT9005 PowerSeries Wireless Receivers: RF5132-433 PC5132-433 RF5108-433 PowerSeries RFK Keypads: RFK5500 RFK5501 RFK5516 RFK5508 |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
FAQ
What type of wireless technology does the DSC WS4904P use?
The DSC WS4904P uses infrared passive infrared (PIR) detection combined with 433 MHz wireless transmission technology. This provides reliable communication with compatible receivers while maintaining stable signal integrity across typical installation distances.
How does the pet immunity feature work?
The pet immunity feature allows the sensor to distinguish between human movement and pets weighing up to 60 pounds (27 kg). Using advanced signal processing, it filters out infrared signatures from smaller animals while maintaining sensitivity to human-sized heat patterns, reducing false alarms in homes with pets.
What is the coverage area of this motion sensor?
The WS4904P provides a detection coverage area of 40 feet by 40 feet (12 meters by 12 meters). This square coverage pattern ensures consistent motion detection throughout the designated space, making it suitable for medium-sized rooms, hallways, or entry areas.
How long does the battery last and what type is included?
The sensor includes a long-life lithium battery capable of up to 9 years of operation under normal conditions. This extended battery life minimizes maintenance requirements and ensures reliable performance without frequent battery replacements.
What DSC systems is this motion sensor compatible with?
The WS4904P is compatible with DSC MAXSYS, Envoy, and PowerSeries wireless security systems. Specific compatible devices include wireless receivers like PC4164-433, RF5132-433, and PC5132-433, as well as keypads such as RFK5500, RFK5501, RFK5516, and RFK5508.
Can the sensitivity be adjusted for different environments?
Yes, the WS4904P includes sensitivity adjustment settings that allow configuration for 'normal' (high sensitivity) environments or 'hostile' (low sensitivity) environments. This flexibility enables optimization for various installation scenarios, from quiet residential spaces to high-traffic commercial areas.
| Qty | Price | Available |
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