duct detector for sale, brand-new and used.

The SD505-DUCT addressable duct smoke detector is a heavy duty detector housing with the SD505-APS addressable photoelectric smoke detector pre-installed and is used for detecting smoke and products of combustion present in air moving through HVAC air handling systems. Compatible with 5700, 5808, 5820XL, and 5820XL-EVS IntelliKnight addressable fire alarm control panels programmed for Hochiki protocol.

This auction is for a lot of 5 System Sensor brand smoke detectors for duct applications, model LD45. These are brand new and comes as pictured. Please message us with any questions. 

SYSTEM SENSOR RTS451KEY SMOKE DETECTOR REMOTE TEST STATION NEW IN THE BOX System Sensor Key Remote Test And Reset Station For Duct Smoke Detector 1 RTS451KEY(A) remote test station1 screw pack (2 mounting screws2 Keys

PHOTOELECTRIC SMOKE DETECTOR FSD-751PLA Intelligent Low-Flow Photoelectric Duct Smoke Detectors with FlashScan 2-Wire Intelligent Photoelectric Low Flow Duct Smoke Detector. Addressable low-flow duct detector housing with photoelectric smoke detector with ULC listing. *** NEW – UNOPENED BOX ***

The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular duct work. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute, temperatures of -4°F to 158°F, and a humidity ran

This listing is for a brand new Innovair Notifier FSD-751PL duct detector with all installation parts and extension tube. It also comes with a brand new System Sensor RTS451KEY reset key and 30' of 18/4 solid connection cable. Everything will come in the original box for the duct detector.

Brand new Notifier DHX-502 Intelligent Air duct Detector housing. 6 are available-brand new in the box

SIGA-DH Manufactured by EDWARDS SYSTEMS TECHNOLOGY EDWARDS SMOKE DETECTOR DUCT HOUSING

NEW SM 501-P Series Photovoltaic Duct Smoke Detector FREE SHIPPING!

System Sensor Innovair Flex 4 Wire Duct Smoke Detector Model D4120 NIB The D4120 Duct Smoke Detector consists of the D4S Sensor Component And the D4P120 Power Board

Photoelectric duct Smoke detector-signature 

New in box. System Sensor Innovair flex Intelligent non-relay duct detector. Model DNR.

Photoelectric duct Smoke detector-signature

INNOVAIRLow Flow Duct Smoke DetectorModel DH100ACDCLPBRAND NEW IN THE BOX

BOSCH Security Systems D285DH Photoelectric Duct Smoke Detector Head (12 VDC or 24 VDC) Commercial or residential applications Two-wire or four-wire application, depending on base Chamber Check rapid-flash LED Automatic Trouble Indication reports contaminated chamber Flashing LED power indicator Steady-

I am offering a genuine Notifier duct smoke detector. Comes with pictured mount. No other cables.

You are bidding on a New System Sensor Innovair DH100ACDCI Duct Smoke Detector. The duct smoke detector is new never used in the original box. This item will come as pictured.

totaline P270-2000PL air duct smoke detector with low-flow technology.4-wire photoelectric. appears new in open box. old stock.