Dust detectors are a special type of fire detectors that are installed in ducts of HVAC systems to sense the signs of a fire breakout, like smoke. They can easily differentiate between the regular dust and fire smoke and help reduce the false alarm triggers. These devices are highly essential as they can detect a fire breakout and instantly trigger an emergency stop to prevent the smoke from spreading through HVAC systems. These devices are very reliable in places where you have regular smoke and dust all day, like the kitchen. They can easily detect the smoke produced because of fire. Choosing the duct detectors for your needs can be a tricky process, so we have curated a list of the top 10 best dust detectors to choose from.
The Working of Dust Detectors
Installation: The dust detectors are installed inside the ducts of the HVAC systems at different spots. There they draw in the air for sampling using the tubes.
Detection: The device has a photoelectric detector which can sense the smoke accurately without triggering false alarms.
Response: When the detector senses the smoke, it immediately triggers and sends the signal to the main control panel and then the panel takes action to trigger the alarm.
Major Benefits of Using Duct Detectors
Early Smoke Detection
Duct detectors have a special sampling tube through which they can draw air inside and test it for smoke. This process is repeated constantly throughout the active time, which allows it to detect smoke early and send the signal to the control panel to instantly trigger the fire alarm. With this, the occupants of the building can timely evacuate the building.
Prevents Smoke from Spreading
If there is a fire breakout in the ducts of the HVAC system it can spread through the surrounding area because of the fan. However, the duct detectors quickly activate and send the signal to instantly shutdown the HVAC fan, which prevents the smoke from spreading further.
Early Evacuation
Duct detectors sense the fire smoke and send the signal to the control panel immediately for shutting down the HVAC systems and trigger the fire alarms. Because of which the occupants can immediately evacuate the building before anyone gets hurt.
Reducing Property Damage
Duct detectors are very reliable fire alarm devices when it comes to detecting a fire breakout early and taking immediate action. These devices help reduce property damage by triggering the alarms as soon as the smoke is detected by the sampling tubes. Instead of waiting for the smoke to spread, these detectors sample the air regularly to check for smoke.
Top 10 Duct Detectors in India Offered By Popular Brands
1. Apollo Series 65 Duct Smoke Detector
- Sensor: Photoelectric detection
- Tube: Adjustable air sampling tube
- Indicator: LED alarm/status
- Compatibility: Works with Apollo panels
- Service: Easy to clean housing
2. Honeywell Notifier FSD-751
- Sensor: Photoelectric sensor
- Airflow: Works in wide airflow range
- Relay: Built-in alarm relay
- Housing: Durable duct enclosure
- Testing: External test ports
3. System Sensor DUCTSD
- Sensor: Optical smoke sensing
- Mounting: Quick base installation
- Tubing: Supports multiple tube sizes
- LED: Clear status indicators
- Maintenance: Tool-free chamber access
4. GST Duct Detector Box (for I-9105R)
- Compatibility: For GST I-9105R detector
- Sampling: Dual air sampling tubes
- Body: Metal enclosure build
- Inspection: Transparent viewing panel
- Use: Suitable for HVAC ducts
5. Morley-IAS Duct Smoke Detector
- Sensor: Photoelectric sensing
- Panel: Works with Morley panels
- LED: Power/alarm fault display
- Installation: Ready mounting base
- Service: Easy detector removal
6. Ravel RE-716D
- Sensor: Optical smoke detection
- Housing: Durable ABS body
- Indicator: Alarm LED
- System: Compatible with Ravel systems
- Access: Easy cleaning chamber
7. Cooper Duct Detector
- Sensor: Photoelectric for accuracy
- Standards: International approvals
- Testing: Built-in test switch
- Durability: Corrosion-resistant build
- Integration: Works with Cooper panels
8. Edwards EST SIGA2-DUCT
- Sensor: Intelligent addressable sensing
- Sensitivity: Adjustable levels
- Communication: Two-way with EST panel
- Housing: Dust-protected enclosure
- Indicators: LED status display
9. Hochiki SLV-D3 with Duct Housing
- Sensor: Stable photoelectric detection
- Housing: Firm airflow sampling case
- LED: Dual status lights
- System: Hochiki compatible
- Service: Quick removal design
10. Bosch D341P
- Sensor: High-stability photoelectric chamber
- Airflow: Works in medium/high airflow
- Relay: Alarm & supervisory outputs
- Access: Front-open maintenance
- Certification: UL safety listed

