duct smoke detectors for sale, brand-new and used.

Product Application:The SL-2000 Series Smoke Duct Detector is the latest innovation for early detection of smoke and products of combustion present in air moving through HVAC ducts in

Product Application:The SL-2000 Series Smoke Duct Detector is the latest innovation for early detection of smoke and products of combustion present in air moving through HVAC ducts in

Lot of 4 NEW IN AN OEM FACTORY BOX These are old stock, new smoke detectors, missing to black foam filter (see the pictures). Boxes were opened, but everything is included except the foam. ESL Sentrol Air Duct Smoke Detector

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 ***

this was an overstock item. this item is out of original factory warranty. Has been sitting in stock.

INNOVAIR FLEX (INNOVAIRFLEX).....SYSTEM SENSOR.....4 WIRE DUCT SMOKE DETECTOR.....MODEL D4120... ..MAKE YOUR OFFER AND SAVE MONEY

RTS2 is a multi-signaling accessory, without strobe, designed to work with InnovairFlex 4-wire conventional duct smoke detectors. Features include: • Standby (Green Blink), Trouble (Amber), Maintenance (Amber Blink) and Alarm (Red) LEDs to indicate detector status • Keyswitch to select desired sensor, enable test/reset button and sensitivity reading • Test/reset button • Sensitivity reading ability with SENS-RDR (sold separately) • Selectable continuous or temporal tone

10 brand new in the box Siemens AD2-XHR Duct Smoke Detectors. Items shown in the picture only. Quantity 10.

RTS151 remote test station is automatic fire detector accessory designed to test duct smoke detectors from a convenient location.

4-wire photoelectric low-flow duct smoke detector The InnovairFlex™ Series are the only duct smoke detectors flexible enough to fit configurations from square to rectangular and everything in between. 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 ductwork. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet pe

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RA100Z remote annunciator is designed for both conventional and intelligent applications. It’s red LED provides visual indication of an alarm condition. Expand the versatility of the InnovairFlex line of duct smoke detectors with System Sensor notification and test accessorie

This listing is for 1 Silent Knight Duct Detector model SK-DUCT. This item is brand New and never used. The Model SK-Duct Air Duct Smoke Detector utilizes photoelectric technology for the detection of smoke.

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. 

These are actual photos of the items. They are new and still in the box. The SK-PHOTO is an addressable photoelectric smoke detector and the SK-PHOTO-T is an addressable photoelectric smoke detector with thermal detection.

NewCenturyAuto5518 Specializing in New Old Stock HVAC Heating and Cooling Components All of our products are New Old Stock or Dead Stock unless otherwise noted Product Description: NOS LOT OF 2 ESL Duct Smoke Detector Model Numbers: 609U02-11, 609U01-11 Photoelectric or Inization Shuts down fan when smoke is detected in HVAC system Shipping information: 1-day handling time on all products Smaller items <70lbs will ship UPS Large it

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.

Remote test switch for System Sensor duct detectors. 6 available, price is per each

5- PID-95 modules2- XP95A Heat Detector with bases10- XP95A Ionization Smoke Detectors with bases2-MS-95 Addressable Pull Stations.2-Duct Detector Test Switchsscrews are missing from 2 piece base that hold them together.Taken out of a working system for a upgrade.

System Sensor Remote Test Station to Test Smoke Detectors (replaces RTS451) The RTS151 remote test station is an automatic fire detector accessory designed to test duct smoke detectors from a convenient location. Specifications