SAE SSU-55000-335DCT Duct Smoke Detector Replacement Head

Ensure continuous, reliable duct smoke monitoring with the Space Age Electronics SSU-55000-335DCT photoelectric replacement head. Built as a direct replacement for RT-3000-P, SL-2000-P and SM-501-P duct detectors, this smoke detector head restores dependable performance without a full system swap. The photoelectric sensor delivers fast response to smoldering fires common in HVAC ducts, improving early warning for building security and life-safety systems. Manufactured to match UL268A duct applications and listed under manufacturer part number SSU-55000-335DCT, it also replaces model SSU-55000-328 for straightforward compatibility. Ideal for contractors and facilities teams, the compact replacement head reduces downtime, lowers maintenance costs, and minimizes false alarms—keeping surveillance, security and fire monitoring systems operational. Installers will appreciate the plug-and-play fit into existing detector housings for rapid service. For dependable duct detection in commercial HVAC and security environments, order the Space Age Electronics SSU-55000-335DCT replacement head or contact our team for installation guidance.

• Fast retrofit replacement for RT-3000-P, SL-2000-P and SM-501-P units to minimize downtime
• Photoelectric sensing for early, reliable detection in duct applications, improving life-safety monitoring
• Designed for UL268A duct applications and replaces model SSU-55000-328 for easy parts compatibility
• Durable construction reduces false alarms and lowers long-term maintenance costs
• Simple install into existing housings saves technician time and keeps HVAC/security systems online