Detectors
Smoke detectors are initiating devices used to detect the presence of smoke and signal a fire alarm control panel. In commercial fire alarm systems, these devices provide early warning of potential fire conditions and are typically installed in accordance with building codes and system design requirements.
Commercial smoke detectors are commonly available in photoelectric or ionization configurations. Photoelectric models are generally more responsive to smoldering fires, while ionization models are designed to respond more quickly to flaming fires. Many modern systems use photoelectric detection due to current code preferences and application requirements.
Smoke detectors may be addressable or conventional. Addressable detectors communicate individually with the control panel and report a specific device location when activated. Conventional detectors are wired in zones and report alarms at the zone level. Proper selection depends on the type of fire alarm panel and the signaling method used in the existing system.
Compatibility is critical. Detectors must match the panel series and communication protocol in use. Many models are manufacturer-specific and not interchangeable across systems.
Incendico supplies new and surplus commercial smoke detectors from major manufacturers. Listings reflect the exact model and condition available.
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Siemens OH921 S54320-F6-A2 Smoke Detector - DPU Tested - Free Programming!
Vendor:SiemensRegular price $31.46 USDRegular priceSale price $31.46 USD -
Simplex 4098-9780 Fire Alarm Detector Base (NEW IN BOX)
Vendor:SimplexRegular price $23.36 USDRegular priceSale price $23.36 USD -
Simplex Grinnell 912P Fire Alarm Photoelectric Smoke Detector (NEW IN BOX)
Vendor:GRINNELLRegular price $188.96 USDRegular priceSale price $188.96 USD -
NOTIFIER SDX-551TH Fire Alarm Smoke Detector with Thermal Detector
Vendor:NOTIFIERRegular price $22.46 USDRegular priceSale price $22.46 USD -
Gamewell-FCI ATD-L3-IV Fire Alarm Thermal Heat Detector + Base
Vendor:Gamewell-FCIRegular price $34.16 USDRegular priceSale price $34.16 USD -
Simplex 4098-9603 Fire Alarm Ion Smoke Detector Head (NEW IN BOX)
Vendor:SimplexRegular price $265.46 USDRegular priceSale price $265.46 USD -
Apollo 55000-350APO Series 60A Fire Alarm Photoelectric Smoke Detector
Vendor:ApolloRegular price $17.96 USDRegular priceSale price $17.96 USD -
Kidde KI-PD Fire Alarm Carbon Monoxide CO Detector
Vendor:KiddeRegular price $11.66 USDRegular priceSale price $11.66 USD -
Mircom MIX-3100 Fire Alarm Alpha Photoelectric Smoke Detector
Vendor:MircomRegular price $18.86 USDRegular priceSale price $18.86 USD -
Simplex 2098-9203 Fire Alarm Smoke Detector Head
Vendor:SimplexRegular price $61.16 USDRegular priceSale price $61.16 USD -
EST Edwards 2551F Fire Alarm Smoke Detector Head
Vendor:EdwardsRegular price $16.16 USDRegular priceSale price $16.16 USD -
System Sensor 4W-B Fire Alarm i3 Smoke Detector Head
Vendor:System SensorRegular price $18.86 USDRegular priceSale price $18.86 USD -
Mircom MIX-3300 Fire Alarm Alpha Heat Detector Adjustable Response
Vendor:MircomRegular price $17.96 USDRegular priceSale price $17.96 USD -
Faraday 8713 Fire Alarm Smoke Detector - DPU Tested - Free Programming!
Vendor:FaradayRegular price $337.46 USDRegular priceSale price $337.46 USD -
Autocall Grinnell Thorn ISN-550P 920096 Fire Alarm Photoelectric Smoke Detector
Vendor:AutocallRegular price $18.86 USDRegular priceSale price $18.86 USD -
Bosch D263TH Fire Alarm Detector (Broken Plastic - See Photos)
Vendor:BoschRegular price $14.36 USDRegular priceSale price $14.36 USD -
Potter APS Fire Alarm Analog Photoelectric Smoke Detector
Vendor:Potter Electric SignalRegular price $89.96 USDRegular priceSale price $89.96 USD -
Johnson Controls 2951J Fire Alarm Smoke Detector Head
Vendor:Johnson ControlsRegular price $16.16 USDRegular priceSale price $16.16 USD -
Xtralis VESDA VLI-885 Laser Industrial Aspirating Smoke Detector (NEW IN BOX)
Vendor:XtralisRegular price $4,769.96 USDRegular priceSale price $4,769.96 USD -
Xtralis VESDA VLI-885 Laser Industrial Aspirating Smoke Detector (NEW IN BOX)
Vendor:XtralisRegular price $4,769.96 USDRegular priceSale price $4,769.96 USD -
System Sensor 5601 Fire Alarm Heat Detector
Vendor:System SensorRegular price $8.96 USDRegular priceSale price $8.96 USD -
Honeywell XLS-HFS Fire Alarm Intelligent Detector
Vendor:HoneywellRegular price $28.76 USDRegular priceSale price $28.76 USD -
Simplex 4265 Fire Alarm Heat Detector
Vendor:SimplexRegular price $26.96 USDRegular priceSale price $26.96 USD -
Gentex 8100 Fire Alarm Smoke Detector (Untested)
Vendor:GentexRegular price $103.46 USDRegular priceSale price $103.46 USD -
Fire-Lite MMF-302 Fire Alarm 2-wire Smoke Detector Interface Module (NEW)
Vendor:Fire-LiteRegular price $63.86 USDRegular priceSale price $63.86 USD -
Fire-Lite MMF-302 Fire Alarm 2-wire Smoke Detector Interface Module (NEW)
Vendor:Fire-LiteRegular price $62.06 USDRegular priceSale price $62.06 USD -
EST Edwards 6149B Fire Alarm Smoke Detector (NEW IN BOX)
Vendor:EdwardsRegular price $65.66 USDRegular priceSale price $65.66 USD -
BRK 2839ACI 120VAC Photoelectric Smoke Detector (NEW IN BOX)
Vendor:BRKRegular price $98.96 USDRegular priceSale price $98.96 USD -
Fire-Lite MMF-302 Fire Alarm 2-wire Smoke Detector Interface Module (NEW)
Vendor:Fire-LiteRegular price $62.96 USDRegular priceSale price $62.96 USD -
NOTIFIER FSP-951-SELFT Fire Alarm Smoke Detector
Vendor:NOTIFIERRegular price $18.86 USDRegular priceSale price $18.86 USD -
Faraday 8712 Fire Alarm Heat Detector (NEW IN BOX)
Vendor:FaradayRegular price $456.26 USDRegular priceSale price $456.26 USD -
EST Edwards 6250B Fire Alarm Ionization Smoke Detector + Base
Vendor:EdwardsRegular price $24.26 USDRegular priceSale price $24.26 USD -
Siemens PE-11 500-094150 Fire Alarm Smoke Detector Head (NEW IN BOX)
Vendor:SiemensRegular price $77.36 USDRegular priceSale price $77.36 USD -
NOTIFIER FSC-851 IntelliQuad Advanced Multi-Criteria Detector (NEW IN BOX)
Vendor:NOTIFIERRegular price $350.96 USDRegular priceSale price $350.96 USD -
Fire-Lite MMF-302 Fire Alarm 2-wire Smoke Detector Interface Module (NEW)
Vendor:Fire-LiteRegular price $62.96 USDRegular priceSale price $62.96 USD -
EST Edwards 6250B Fire Alarm Ionization Smoke Detector + Base
Vendor:EdwardsRegular price $24.26 USDRegular priceSale price $24.26 USD