Edwards Signaling SD-TRM4 SD Series SuperDuct Remote Test Reset Station for 4-Wire Duct Smoke Detectors, Magnetic

Keep duct smoke detection accessible and maintenance-friendly with the Edwards Signaling SD-TRM4 remote test/reset station. This SD series remote station is designed for 4-wire duct smoke detectors and delivers the primary benefit of fast, reliable testing and reset without disturbing ductwork. Its ultra-slim magnetic housing installs in tight spaces (under 2 in depth) and speeds routine inspections, reducing service time and operational disruption. The SD-TRM4 uses a PCB-mounted photoelectric sensor with on-board intelligence and patented differential sensing to provide accurate environmental compensation, minimizing false alarms in complex HVAC conditions. Rated for operation up to 131°F (55°C) and compatible with Kiddie 4-wire detectors, it integrates smoothly into fire monitoring, security, and building surveillance systems. Facilities managers, fire contractors, and security integrators will appreciate the improved uptime, easier maintenance, and better code compliance the unit supports. Add the Edwards SD-TRM4 to your next duct smoke detector installation or retrofit to streamline monitoring and maintenance workflows.

• Ultra-slim magnetic design (under 2 in depth) for installation in tight duct or equipment spaces
• Simplifies testing and resetting of 4-wire duct smoke detectors to reduce service time and downtime
• PCB-mounted photoelectric sensor with on-board intelligence for consistent detection and fewer false alarms
• Patented differential sensing provides environmental compensation for reliable performance in HVAC conditions
• Compatible with Kiddie 4-wire detectors and rated to 131°F (55°C) for commercial HVAC and security environments