Potter SM-501-P Photoelectric Duct Smoke Detector

Protect building occupants and critical systems with the Potter Electric Signal SM-501-P photoelectric duct smoke detector — engineered for fast, reliable detection of smoke in HVAC ductwork. Designed to prevent the spread or re-circulation of smoke by air handlers, fans, and blowers, the SM-501-P delivers actionable fire monitoring that ties directly into life-safety and building automation systems. With multi-voltage operation (230VAC, 115VAC, 24VAC or 24VDC) and UL 268A listing, this duct smoke detector provides specification-friendly performance and flexible power options for retrofit or new construction projects. Photoelectric sensing improves response to smoldering and low-visibility threats common in duct environments, while the ability to interconnect up to 30 units and the inclusion of dual 10A Form C alarm contacts enable seamless integration into fire panels, security, and facility monitoring platforms. Housed in a rugged steel back box and compatible with the WP-1 weatherproof enclosure, the SM-501-P is built for reliable service in commercial, industrial, and residential HVAC applications. Specify the SM-501-P for dependable duct smoke detection — contact our team to discuss integration or add it to your project order today.

• Early detection of ducted smoke to prevent HVAC recirculation and protect occupants and equipment
• Photoelectric sensing optimized for smoldering fires and HVAC airflow for reliable fire monitoring
• Multi-voltage support (230VAC, 115VAC, 24VAC, 24VDC) simplifies installation across building systems
• Interconnect up to 30 detectors and two 10A Form C alarm contacts for flexible integration with fire/security controls
• Rugged steel back box and WP-1 compatibility for dependable performance in commercial and industrial duct environments