Kidde SD-4WJ SuperDuct Replacement PCB 4-Wire Sensor Kit
Special Order: typically 2–6 weeks
Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.
Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.
A member of our team will check with the manufacturer and personally reply by email.
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Key Features
- Restores full duct smoke detection quickly — direct-fit replacement PCB for Kidde SuperDuct 4-wire detectors
- Photoelectric sensing for reliable smoke detection and reduced false alarms in HVAC ducts
- 24 V DC compatibility and standard connections speed service and minimize downtime
- Visible status LEDs and tool-free access simplify testing, troubleshooting and maintenance
- Built for commercial life-safety systems — supports building monitoring and HVAC integration
Quick Specifications
- Product Model
- SD-4WJ
- Brand Name
- Kidde Commercial
- Product Name
- Four-wire Duct Smoke Detector
- Product Type
- Duct Smoke Detector Sensor
Explore the details
Product information
SD-4WJ
Overview
Get duct smoke protection back online fast with the Kidde Commercial SD-4WJ SuperDuct replacement PCB 4-wire sensor kit. Designed as a direct-fit replacement for SuperDuct four-wire duct smoke detectors, this kit restores photoelectric smoke sensing and preserves in-field status LED visibility so technicians can confirm operation without disassembly. With 24 V DC compatibility and standard terminal connections, the PCB reduces service time and helps avoid extended system outages — a critical benefit for commercial security, fire detection and building management teams. The board's layout supports straightforward installation and maintenance with no special tools required, making it ideal for HVAC duct monitoring, life-safety upgrades and ongoing facility surveillance. Manufactured to Kidde Commercial quality, the SD-4WJ kit keeps your duct detection infrastructure reliable and code-compliant. Order this replacement PCB to quickly return your SuperDuct detector to service and maintain continuous monitoring across your property.
Features
- Restores full duct smoke detection quickly — direct-fit replacement PCB for Kidde SuperDuct 4-wire detectors
- Photoelectric sensing for reliable smoke detection and reduced false alarms in HVAC ducts
- 24 V DC compatibility and standard connections speed service and minimize downtime
- Visible status LEDs and tool-free access simplify testing, troubleshooting and maintenance
- Built for commercial life-safety systems — supports building monitoring and HVAC integration
| General Information | |
|---|---|
| Brand Name | Kidde Commercial |
| Manufacturer | Carrier |
| Product Name | Four-wire Duct Smoke Detector |
| Product Type | Duct Smoke Detector Sensor |
| Product Model | SD-4WJ |
| Package Length | 6.000000000 |
| Product Series | SuperDuct |
| Packaged Quantity | 1 |
| Manufacturer Part Number | SD4WJ |
| Technical Information | |
| Detectable Medium | Smoke |
| Sensing Technology | Photoelectric |
| Controls/Indicators | |
| Status Indicators | Yes |
| Power Description | |
| Power Source | Battery/AC Power |
| Input Voltage | 24V DC |
| Miscellaneous | |
| Country of Origin | CN |
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Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- SD-4WJ
- Manufacturer part:
- SD-4WJ
How do I confirm compatibility?
Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.
Ask a product specialistWhen will this item ship?
Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.
Shipping, freight and delivery detailsWhat should I know about returns?
Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.
Read return eligibility and exclusionsKidde SD-4WJ SuperDuct Replacement PCB 4-Wire Sensor Kit
SD-4WJ