Edwards Signaling SD-4WJ SuperDuct Four-Wire Duct Smoke Detector with RJ45 Sensor and Controller

Edwards Signaling · Fire & Life Safety

Description  The Edwards Signaling SD-4WJ is a four-wire duct smoke detector that combines a photoelectric smoke sensor and controller into a single assembly for HVAC duct monitoring. Manufactured by Edwards Signaling, the SD-4WJ features RJ45 modular connections for simplified installation and is designed to provide early smoke detection within air handling systems. Its intelligent sensing technology and environmental compensation deliver dependable performance in commercial and industrial fire alarm applications.     Technical Specifications  Condition New/Never Used Surplus Brand Edwards Signaling Category Fire Alarm Systems Part Number SD-4WJ Subcategory Duct Smoke Detector Series SuperDuct™ Series Product Type Four-Wire Duct Smoke Detector with Sensor and Controller Detection Method Photoelectric Configuration Integrated Sensor and Controller Wiring Four-Wire Connector Type RJ45 Modular Environmental Compensation Automatic Differential Sensing Patented Status Indicators LED Remote Testing Compatible with Remote Test/Reset Stations Application HVAC Duct Smoke Detection Mounting Duct Mount Dimensions 8.706 in. L × 5.45 in. H × 1.9 in. D Operating Temperature -4°F to 158°F (-20°C to 70°C) Humidity Range 10–93% RH, Non-Condensing Weight 1.6 lb (0.73 kg)     Information About SD-4WJ The Edwards Signaling SD-4WJ is a four-wire duct smoke detector that combines a photoelectric smoke sensor and controller into a single assembly for HVAC duct monitoring. Manufactured by Edwards Signaling, the SD-4WJ features RJ45 modular connections for simplified installation and is designed to provide early smoke detection within air handling systems. Its intelligent sensing technology and environmental compensation deliver dependable performance in commercial and industrial fire alarm applications. Key Features: Integrated Sensor and Controller: Combines the smoke sensor and controller in one assembly. Four-Wire Design: Designed for conventional four-wire fire alarm systems. RJ45 Modular Connection: Simplifies installation and field wiring. Photoelectric Detection: Provides early smoke detection within HVAC duct systems. Environmental Compensation: Automatically adjusts sensitivity to reduce nuisance alarms. Differential Sensing Technology: Helps maintain stable long-term detection performance. Remote Testing Capability: Compatible with optional remote test/reset stations. LED Status Indicators: Clearly display power, alarm, and trouble conditions. The SD-4WJ delivers the reliability and precision required for HVAC smoke detection, fire alarm monitoring, and commercial life safety applications.

Brand: Edwards Signaling · Category: Fire & Life Safety

Key features

• Integrated Sensor and Controller: Combines the smoke sensor and controller in one assembly.
• Four-Wire Design: Designed for conventional four-wire fire alarm systems.
• RJ45 Modular Connection: Simplifies installation and field wiring.
• Photoelectric Detection: Provides early smoke detection within HVAC duct systems.
• Environmental Compensation: Automatically adjusts sensitivity to reduce nuisance alarms.
• Differential Sensing Technology: Helps maintain stable long-term detection performance.
• Remote Testing Capability: Compatible with optional remote test/reset stations.
• LED Status Indicators: Clearly display power, alarm, and trouble conditions.

Specifications

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