The following white papers are available from System Sensor. Please check back often for new offerings.

• Smoke Detector Spacing on Level Ceilings with Beams and Joists(pdf)
• Eliminating Confusion: UL Revises UL 1971, Signaling Devices for the Hearing Impaired
• Visible Signaling in Large Spaces (pdf)
• Proper Placement, Testing and Maintenance of Carbon Monoxide Detectors
• Limited Life of Carbon Monoxide Detectors