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

NIB 2 wire duct smoke detector.

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Brand new D355PL non relay duct detector. 

This is a lot of 3 system sensor DNR non relay duct smoke detectors. These are missing some of the plastic covers. Sold for parts or repair.

Brand new inbox...Never been used. SpecificationsAir Duct Velocity100 to 4000 ft./min. (0.5 to 20.32 m/sec)Alarm auxiliary contacts DPDT10A @ 30 VDC (resistive); 10A @ 250 VAC (resistive); 1/2 HP @ 240 VAC ; 1/4 HP @ 120 VACAlarm Current:65 mA @ 24VDC 135 mA RMS @ 24VAC 60

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

Duct Smoke detector head for the DH-98 duct housing

System Sensor DCOIL 2-wire Remote Test Coil for Innovair Flex Smoke Detector

Addressable Ionization Type Smoke Detector SD505-AIS This a used smoke detector. It was removed from a Silent Knight duct detector housing. If you have any question please sent me a message.

AP&C Duct Smoke Detector RWJ/N w/Apollo 60A ionization detector 55000-350 Fire Alarm.   Questions:  If you have a question about an item or order, please contact us immediately and we will respond within 1 business day or less. Please contact us through the eBay email system for a guaranteed response.

This is a new smoke detector. Box was sealed. Opened box to take the picture.

Condition: Brand new System sensor Dutc smoke detector. Model number DNR Still in the original packaging.

New never used, in original packaging, was to be used on job site, but we purchased too many,Item was open and marked with a number as you can see in the photo's.SIEMENS ILI-1A IONIZATION OPEN AIR ("CEILING MOUNT") OR PLENUM USE ADDRESSABLE SMOKE DETECTOR (0-1200 CFM). THIS DETECTOR CAN BE USED IN APPLICATIONS AS YOU WOULD AN ILI-1, AS IT IS FOR 0-1200CFM AND HAS A GREATER PROTECTION FEATURE SET (GREATER AIR FLOW CONSIDERATIONS).

new in the box Innovair flex D4120 smoke detector

SYSTEM SENSOR INNOVAIR FLEX MODEL # DNR INTELLIGENT NON - RELAY DUCK SMOKE DETECTOR MUST ORDER HEAD SEPARATELY ... THANKS FOR LOOKING .

Second Wind Sales BRK Electronics 2851B 24 volt Smoke Detector Alarm 2-Wire White NEW

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Siemens Smoke Detector HFP-11 with DB-11 base.  • Most Sophisticated “Detector

This smoke detector is brand new. It was a demo model in the store. Never installed or used.

System Sensor D4120 Innovair Flex HVAC Duct Smoke Detector 4-Wire New 4-Wire Photoelectric