Bosch DS150i Request-to-Exit PIR Motion Sensor - REX Access Control Detector

Reliable motion detection to trigger automatic door release in Request-to-Exit applications. The Bosch DS150i is a digital passive PIR (infrared) detector purpose-built for Request-to-Exit (REX) systems, designed to sense motion within its coverage area and signal an access control system or door control device to unlock or release.

REX detectors like the DS150i are a standard component of modern access control installations, allowing people to exit through a secured door without needing a key, card, or code — simply approaching the door triggers the sensor and releases the lock. This improves both convenience and safety, particularly for fire egress requirements where doors must be able to open freely from the inside. In many jurisdictions, a working REX detector on secured exit doors is not just a convenience feature but a life-safety requirement for building compliance.

Key features

• Digital passive PIR detector
• Purpose-built for Request-to-Exit (REX) applications
• Detects motion to signal access control or door release systems
• Part of the DS150i Series

Ideal for

• Access-controlled doors requiring free exit
• Fire egress and life-safety door applications
• Commercial and institutional access control installations
• Sites needing to meet building fire egress compliance requirements

Good to know

Confirm compatibility with your existing access control panel or door controller before installation, and position the sensor according to manufacturer guidance for reliable detection coverage. Regularly test the detector as part of routine building safety checks, given its role in fire egress.