Bosch Motion Detector 360° Ceiling Mount DS939

The Bosch DS939 ceiling-mount PIR detector delivers comprehensive, 360-degree panoramic coverage designed to protect large rooms, corridors, and commercial spaces with precision and reliability. With a reach of up to 21 m (70 ft), this detector provides a wide detection field while remaining unobtrusive when mounted on ceilings. It is engineered to perform on ceilings as high as 7.6 m (25 ft), offering installation flexibility for a range of architectural layouts. The DS939 features three independent PIR sections that are fully adjustable, ensuring coverage integrity across different mounting heights and room geometries. This combination of broad coverage, adaptable mounting, and customizable detection zones makes the DS939 an ideal choice for proactive perimeter protection, reducing blind spots, and supporting robust security workflows in retail, office, hospitality, and industrial environments. With Bosch’s renowned reliability, the DS939 is built to endure demanding conditions, maintain stable operation, and integrate smoothly into existing security ecosystems, delivering dependable motion detection and timely alerts when it matters most.

• 360° panoramic coverage up to 21 m (70 ft) ensures broad, consistent motion detection across the protected area.
• Ceiling-mount design supports ceilings up to 7.6 m (25 ft), providing flexible placement for various room heights.
• Three independent PIR sections are fully adjustable, enabling precise customization of detection zones to maintain coverage integrity at any mounting height.
• Customizable detection patterns help minimize blind spots and align with the room layout, improving detection reliability for security teams.
• Durable, reliable design optimized for commercial deployments, suitable for integration into Bosch security solutions and professional-grade installations.

Technical Details of Bosch Motion Detector 360° Ceiling Mount

• Model: DS939 PIR Detector
• Sensor Type: Passive Infrared (PIR)
• Coverage: 21 m (70 ft) panoramic
• Mounting Height: Suitable for ceilings up to 7.6 m (25 ft)
• Detection Sections: Three independent PIR sections, fully adjustable

How to Install Bosch Motion Detector 360° Ceiling Mount

• Plan placement to maximize coverage and minimize obstructions. Consider centrally locating the detector to cover the intended area while avoiding glare from reflective surfaces or warm drafts.
• Power down the security system and follow local electrical codes during installation to ensure safety and proper wiring practices.
• Install the ceiling mounting plate at the recommended height on a secure ceiling surface, ensuring it is firmly anchored to support the detector's weight and mounting dynamics.
• Run and connect wiring according to the Bosch system wiring diagram and applicable standards. Use appropriate conduits, connectors, and protections to maintain safe and code-compliant installations.
• Attach the DS939 to the mounting plate, then adjust the three PIR sections. Align each section to optimize coverage based on the room layout and ceiling height.
• Test the detector with the security control panel, verify detection across multiple zones, and fine-tune the PIR angles and zones as needed to achieve desired coverage.

Frequently asked questions

• Q: What is the detection range of the DS939?
  A: The DS939 offers a 21 m (70 ft) panoramic coverage pattern to monitor a wide area efficiently.
• Q: Can this detector be installed on high ceilings?
  A: Yes. It is designed for ceiling installations up to 7.6 m (25 ft), providing installation flexibility in larger rooms.
• Q: How many PIR sections does the DS939 have?
  A: It includes three independent PIR sections that are fully adjustable to tailor coverage to the space.
• Q: Is the DS939 compatible with Bosch security systems?
  A: The DS939 is a Bosch motion detector designed to integrate with Bosch security solutions, offering reliable detection within a professional-grade security setup.