Bosch Motion Detector 360° Ceiling 60ft (18m) DS936 PIR

The Bosch DS936 is a discreet, high-performance ceiling-mounted motion detector designed to deliver broad, reliable security coverage in commercial and professional settings. Its low-profile panoramic design hides in plain sight while providing a true 360° field of view and flexible mounting options. Utilizing an advanced passive infrared (PIR) sensor with an alternate polarity pulse count, the DS936 helps reduce false alarms and improves detection accuracy across open spaces, corridors, and entryways. The detector features a highly adjustable, pointable Fresnel lens that enables precise coverage control, letting you tailor detection zones to the room layout and occupancy patterns. With options for surface mounting, semiflush installation to the ceiling, or mounting on a standard octagonal electrical box, this Bosch detector is engineered to integrate smoothly into existing security systems and architectural designs. If you’re searching for a reliable, adaptable motion sensor that blends into the ceiling while delivering dependable protection, the DS936 is a premier choice for a wide range of installations.

• 360° panoramic ceiling coverage: The DS936’s design delivers a complete 360° field of view from a single ceiling mount, eliminating blind spots and reducing the need for multiple detectors in large spaces. This makes it ideal for retail floors, lobbies, hallways, and open-plan offices, where comprehensive coverage is essential to deter theft and enhance safety.
• Wide detection range with configurable lens: Benefit from a substantial detection reach, with up to 60 ft (18 m) of overall range available for broad-area monitoring. The pointable Fresnel lens supports up to 7.5 m (24 ft) of focused coverage within the broader detection field, allowing installers to customize zones that are most critical to security goals while minimizing nuisance triggers.
• Alternate polarity pulse count technology: This sensor employs a sophisticated detection method that helps differentiate real motion from transient noise, reducing false alarms and improving reliability in environments with changing temperatures, HVAC activity, or ambient lighting fluctuations. This technology enhances performance in busy commercial settings where stable readings matter most.
• Flexible mounting options for seamless installation: The DS936 can be surface-mounted, semiflush directly to a ceiling, or mounted on a standard octagonal electrical box. This flexibility simplifies retrofits and new constructions alike, letting installers preserve ceiling aesthetics while achieving optimal detection coverage and alignment with architectural constraints.
• Low-profile design with precise lens control: The compact, unobtrusive profile of the DS936 blends with interior design while the adjustable, pointable Fresnel lens provides precise targeting of detection zones. This capability is especially valuable in storefronts, corridors, and service areas where you want to emphasize specific entry points and high-traffic zones without over-sensitizing adjacent spaces.

Technical Details of Bosch DS936

• Model: DS936
• Sensor type: Passive infrared (PIR)
• Field of view: 360° panoramic ceiling-mount
• Detection range: Up to 60 ft (18 m) overall; up to 7.5 m (24 ft) of focused coverage with the Fresnel lens
• Lens: Pointable Fresnel lens for adjustable coverage zones
• Mounting options: Surface mount, semiflush to ceiling, or standard octagonal electrical box
• Detection technology: Alternate polarity pulse count

How to install Bosch DS936 Motion Detector

• Plan the installation location to maximize 360° coverage from the ceiling while avoiding obstructions such as light fixtures, fans, or large HVAC vents that could affect performance.
• Ensure power and system compatibility before installation. The DS936 is designed to be integrated with compatible alarm or automation systems, so verify that your control panels and wiring infrastructure support PIR sensors and the detector’s interface.
• Choose the mounting method—surface, semiflush, or octagonal box—based on the ceiling type and the room’s architectural requirements. Prepare the mounting surface by ensuring it is clean, dry, and structurally solid to support the detector securely.
• Mount the DS936 on the chosen surface or box, then connect wiring per local codes and the system requirements. Follow the manufacturer’s wiring diagrams and safety guidelines to ensure proper electrical connections and long-term reliability.
• Align and adjust the pointable Fresnel lens to target the zones you want to monitor most closely. This step is crucial for minimizing false alarms and ensuring sensitive areas (entrances, cash wraps, or corridors) receive appropriate detection coverage.
• Configure sensitivity, hold times, and any system-specific parameters in the accompanying control panel or software. The DS936’s detection characteristics can be tuned to balance responsiveness with false-alarm resilience in varying occupancy patterns.
• Test the installation with real motion scenarios. Walk through the monitored space to verify that the detector triggers as intended across the 360° field, and adjust the lens angle or the detector’s orientation if necessary.
• Finally, secure all wiring and housing components, recheck the mounting integrity, and document the installation for future maintenance. Regular testing and recalibration help maintain optimal performance over time.

Frequently asked questions

• Q: What kind of coverage does the Bosch DS936 provide? A: The DS936 offers a 360° panoramic coverage from a ceiling mount, with up to 60 ft (18 m) of overall detection range. A pointable Fresnel lens enables up to 7.5 m (24 ft) of focused coverage within that broader field, allowing you to tailor zones to the room layout.
• Q: What mounting options are supported? A: The detector is designed for surface mounting, semiflush installation to the ceiling, or mounting on a standard octagonal electrical box, giving installers flexible integration with existing ceilings and electrical infrastructure.
• Q: How does alternate polarity pulse count improve performance? A: Alternate polarity pulse count helps discriminate actual motion from environmental noise, reducing false alarms caused by temperature shifts, airflow from HVAC systems, or lighting fluctuations, which is especially valuable in busy commercial environments.
• Q: Can the Fresnel lens be adjusted after installation? A: Yes. The lens is pointable and adjustable to focus coverage on high-priority zones, enabling precise zone shaping and better protection of critical entry points while avoiding unwanted triggers elsewhere.
• Q: Is the DS936 compatible with standard security systems? A: The DS936 is designed for integration with compatible alarm and security systems. When installing, verify compatibility with your control panel or monitoring partner, and follow local electrical codes to ensure reliable operation and proper alarm signaling.