System Sensor D4S 4-Wire Photoelectric Sensor Component
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Key Features
- Reliable duct smoke detection with industry-leading false-alarm immunity, protecting HVAC systems and building occupants without costly downtime
- Flexible InnovairFlex design fits square or rectangular ducts and installs front or back with a patented sampling tube—reducing retrofit time and labor
- Wide air-velocity coverage (100'/min to 4,000'/min) and multi-voltage support (120V AC, 24V AC/DC) for compatibility across commercial HVAC and security applications
- Plug-in photoelectric sensor module simplifies maintenance and replacement, minimizing service time and keeping monitoring systems online
- Patented interconnect for multi-fan shutdown and robust environmental tolerance (–4°F to 158°F, 0–95% RH) to ensure reliable performance in demanding installations
Quick Specifications
- Product Model
- D4S
- Brand Name
- System Sensor
- Product Line
- InnovairFlex
- Product Name
- InnovairFlex D4S Smoke Detector Sensor Component
Frequently Bought Together
System Sensor D4S 4-Wire Photoelectric Sensor Component
$151.10
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Total: $264.83
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Product information
D4S
Overview
Ensure reliable, low-false-alarm smoke detection in your building’s air handling system with the System Sensor D4S 4-Wire Photoelectric Sensor Component. Designed for the InnovairFlex line, this duct smoke detector sensor delivers accurate early-warning fire detection across a wide air-velocity band (100'/min to 4,000'/min) and supports common power sources including 120V AC and 24V AC/DC for seamless integration into existing fire, security, and building automation systems.
The D4S combines a plug-in photoelectric sensing module with patented sampling-tube installation and versatile square-to-rectangular mounting, reducing installation time and lowering lifetime maintenance costs. Its advanced low-flow technology and false-alarm immunity maintain reliable monitoring in contaminated or variable-flow duct environments, while the interconnect feature enables coordinated multi-fan shutdown for safer HVAC control during events. Ideal for facility managers, integrators, and security teams, the D4S helps meet code requirements and enhances overall surveillance and fire-protection strategies. Upgrade your duct monitoring—specify the System Sensor D4S for new builds, retrofits, or security-integrated HVAC projects.
Features
- Reliable duct smoke detection with industry-leading false-alarm immunity, protecting HVAC systems and building occupants without costly downtime
- Flexible InnovairFlex design fits square or rectangular ducts and installs front or back with a patented sampling tube—reducing retrofit time and labor
- Wide air-velocity coverage (100'/min to 4,000'/min) and multi-voltage support (120V AC, 24V AC/DC) for compatibility across commercial HVAC and security applications
- Plug-in photoelectric sensor module simplifies maintenance and replacement, minimizing service time and keeping monitoring systems online
- Patented interconnect for multi-fan shutdown and robust environmental tolerance (–4°F to 158°F, 0–95% RH) to ensure reliable performance in demanding installations
| General Information | |
|---|---|
| Brand Name | System Sensor |
| Manufacturer | Honeywell International, Inc |
| Product Line | InnovairFlex |
| Product Name | InnovairFlex D4S Smoke Detector Sensor Component |
| Product Type | Photoelectric Sensor |
| Product Model | D4S |
| Product Series | InnovairFlex |
| Country of Origin | MX |
| Manufacturer Part Number | D4S |
| Controls/Indicators | |
| Status Indicators | Yes |
| Power Description | |
| Power Source | AC Power, DC Power |
| Input Voltage | 120V AC, 24V AC, 24V DC |
| Miscellaneous | |
| Compatibility | System Sensor InnovairFlex D4120 4 Wire Photoelectric Duct Smoke Detector |
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Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- D4S
- Manufacturer part:
- D4S
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.
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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 exclusionsSystem Sensor D4S 4-Wire Photoelectric Sensor Component
D4S