Bosch DS150I Request-to-Exit PIR Motion Sensor

Overview

The Bosch DS150I is a request-to-exit (REX) passive infrared motion sensor purpose-built for access control egress automation in secured facilities. This detector identifies occupant movement to trigger door release signals without requiring manual push-to-exit buttons—a meaningful advantage in high-traffic exits where contact-free operation reduces maintenance wear and improves user throughput. The DS150I integrates with standard access control panels and door controllers via wired connectivity, making it suitable for both retrofit and new-build access control deployments.

Key Features

• Passive Infrared (PIR) Detection: Thermal motion sensing eliminates false triggers from visible light reflection or environmental noise—a real factor in corridors with variable lighting or glass reflections that would confuse active beam sensors.
• Request-to-Exit Functionality: Detects egressing occupants and signals the access control panel to unlock the door; eliminates push-button maintenance and reduces contact-point contamination in hygiene-critical facilities.
• Wired Integration: Connects directly to access control panel inputs configured for REX logic; no battery maintenance or wireless synchronization overhead.
• Compact Indoor Form Factor: Light gray finish and low-profile design mount cleanly on or adjacent to door frames without visual clutter—appropriate for institutional, commercial, and secure-entry environments.
• Motion Sensor-Grade Reliability: Thermal detection method tolerates weather-related false triggers better than visible-light sensors, important in doors near windows or exterior walls.
• Standard Wiring Compatibility: Compatible with conventional access control wiring practices; integrates into existing panel inputs without specialized drivers or firmware updates.

Integration & Compatibility

The DS150I deploys in any access control system that accepts standard PIR sensor inputs. Security integrators wire the detector to available REX inputs on door controllers or central access panels; detection signals trigger unlock outputs via normal access control logic. Typical deployment scenarios include secure area egress (server rooms, data centers, restricted labs), high-traffic employee exits, and compliance-driven facilities where hands-free exit documentation is required. The sensor works alongside access control systems from major vendors and integrates cleanly into multi-door environments where REX consistency matters.

Deployment Considerations

Mount the DS150I at waist-to-chest height (approximately 3.5 to 5 feet above floor level) on the interior side of the door frame to capture typical egress motion patterns. Position the sensor to avoid false triggers from hallway foot traffic or HVAC air movement; test the detection zone during commissioning to confirm coverage and nuisance-activation immunity. Ensure the access control panel's REX input is configured to accept the sensor's NC (normally closed) or NO (normally open) signal per your system's egress logic. If the facility has multiple exits, coordinate the DS150I mounting and detection zones across all REX points to maintain consistent egress behavior.

What's in the Box

The DS150I ships as a single sensor unit (Packaged Quantity: 1) ready for professional installation and integration into your access control infrastructure.

Frequently Asked Questions

Q: Is the DS150I suitable for outdoor use?

A: No. The DS150I is rated for indoor deployment only. Exterior egress points require an outdoor-rated request-to-exit detector or push-button alternative.

Q: What access control panels does the DS150I work with?

A: The DS150I integrates with any access control panel that supports standard PIR sensor inputs—typically wired to a REX input terminal. Verify your panel's REX input specifications and signal voltage (usually 12 or 24 VDC) before installation.

Q: Can the DS150I be used as a general motion detector outside of access control?

A: While the DS150I is a PIR motion sensor, it is purpose-engineered for request-to-exit applications. Using it for general motion detection or intrusion alarming may not align with its intended design; consult the access control system manufacturer for guidance on alternative sensors if general motion detection is your goal.

Q: How do I prevent false egress triggers from nearby hallway traffic?

A: Proper mounting height and angle—typically pointing toward the door frame rather than the hallway—reduces false detections. Test the sensor's field of view during commissioning and adjust mounting or access control logic sensitivity (if available) to reject motion outside the egress zone.

Q: Does the DS150I require power supply installation?

A: Power requirements depend on the sensor's connection to your access control panel. Standard wired REX sensors often derive power from the panel's 12 or 24 VDC outputs. Verify your panel's available power and wiring capacity before installation.

Q: What is the expected service life of the DS150I?

A: PIR sensors are solid-state and require no moving parts maintenance. Typical operational life is 5–10 years; if the detector stops responding or generates nuisance alarms, replacement is the standard remediation.

Ted Perry

Perspective based on aggregated and affiliated engineering team experience.

I've specified the Bosch DS150I in access control retrofit projects across multiple facility types. This request-to-exit PIR detector solves a genuine operational challenge: enabling compliant hands-free egress without the maintenance burden and hygiene concerns of push-button REX solutions. The DS150I delivers thermal motion detection tuned specifically for egress patterns—not generic motion sensing.

Technical Highlights:

• Passive Infrared Sensing: Thermal detection eliminates false triggers from ambient light changes, glass reflections, or reflective clothing—meaningful in corridors where visible-light or active beam sensors commonly misfire. This reduces nuisance unlock signals and improves door controller reliability.
• Wired Architecture: Direct connection to the access control panel's REX input eliminates wireless sync overhead and battery maintenance—one less system variable to troubleshoot during commissioning or annual audits.
• Compact Mounting: Light gray finish and low-profile form factor integrate cleanly into existing door frames without visible clutter or retrofit disfigurement—important in institutional and commercial spaces where aesthetics matter as much as function.

Deployment Considerations:

• Mount at 3.5–5 feet above floor level (waist to chest height) on the interior door frame; test field of view during commissioning to confirm egress-zone coverage and rejection of external hallway motion.
• Verify your access control panel's REX input voltage (typically 12 or 24 VDC) and signal logic (NC/NO) before wiring; mismatched voltage or inverted logic will prevent proper unlock triggering.
• In high-traffic environments, confirm that the sensor's detection angle and mounting position avoid false triggers from passing foot traffic or HVAC convection—sensor calibration during initial setup is essential.

Position the DS150I for facilities where hands-free egress compliance, reduced contact-point maintenance, and consistent throughput matter—secure data centers, medical offices, laboratories, and high-traffic employee exits. It is not a general-purpose motion detector; it is an access control component purpose-built for egress automation and hygiene-conscious deployments.