Discover premium duct detectors engineered for early smoke detection in HVAC systems. Our comprehensive selection includes models from top brands like Simplex, System Sensor, and Siemens. Find intelligent photoelectric technology that ensures accurate monitoring and prevents false alarms. Protect your building with industry-leading solutions.
Siemens
Siemens FDBZ492-HR (S54319-B23-A1) Duct Detector 2-Wire
Sale price$173.95
Regular price$208.74
In Stock
Fire-Lite
Fire-Lite D365PL Duct Detector (Replaces D355PL)
Sale price$266.75
Regular price$320.10
In Stock
System Sensor
System Sensor DNRW Duct Smoke Detector (Detector Head Sold Separately)
Sale price$230.30
Regular price$276.36
In Stock
Edwards
Edwards SIGA-SD Duct Smoke Detector
Sale price$221.45
Regular price$265.74
Not in stock - available on backorder - lead time on request
System Sensor
System Sensor D4120 Duct Smoke Detector
Sale price$211.50
Regular price$253.80
In Stock
Air Products and Controls
APC SM-501-P Duct Smoke Detector Photo
Sale price$176.25
Regular price$211.50
In Stock
System Sensor
System Sensor D4120W Duct Smoke Detector 4-Wire
Sale price$298.25
Regular price$357.90
In Stock
Air Products and Controls
APC SL-2000-P Photoelectric Duct Smoke Detector
Sale price$124.65
Regular price$149.58
In Stock
Simplex
Simplex 565-925 4-Wire Duct Sensor PC Board
Sale price$58.10
Regular price$69.72
Not in stock - available on backorder - lead time on request
Edwards
Edwards SIGA-DDOS Optical Intelligent Duct Smoke Detector
Sale price$385.00
Regular price$462.00
In Stock
Siemens
Siemens FDBZ492 (S54319-B22-A1) Duct Housing
Sale price$154.45
Regular price$185.34
In Stock
Fire-Lite
Fire-Lite D355PL Duct Smoke Detector (Replaced by D365PL)
Sale price$247.60
Regular price$297.12
Contact Us for Alternatives
System Sensor
System Sensor D4S Duct Smoke Detector
Sale price$138.30
Regular price$165.96
Not in stock - available on backorder - lead time on request
Potter
Potter PAD200-DD Analog Addressable Duct Detector
Sale price$81.00
Regular price$97.20
In Stock
Simplex
Simplex 4098-9687 Duct Detector
Sale price$234.30
Regular price$281.16
Contact Us for Alternatives
Simplex
Simplex 4098-9842 Duct Control Station
Sale price$95.00
Regular price$114.00
Only 39 units left
Silent Knight
Silent Knight SK-DUCT-W Intelligent Photoelectric Duct Smoke Detector
Sale price$265.65
Regular price$318.78
In Stock
Notifier
Notifier FSP-851R Intelligent Photoelectric Sensor for Remote Testing
Sale price$134.10
Regular price$160.92
Not in stock - available on backorder - lead time on request
System Sensor
System Sensor D2 Innovairflex 2-Wire Conventional Photo Duct Detector
Sale price$212.50
Regular price$255.00
In Stock