system sensor d4120 for sale, brand-new and used.

4-Wire Photoelectric Duct Smoke Detector with Relay Contacts.24 VAC/DC or 120 VAC. System Sensor #D4120

System Sensor D4120 4 Wire Photoelectric Low-Flow Duct Smoke Detector The SYSTEM-SENSOR-D4120 4-wire photoelectric, low-flow, duct smoke detector senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute, temperatures of -4 degrees F to 158 degrees F, and a humidity range of 0 to 95 percent (non-condensing). A plug-in sensor head offers improved false alarm immunity and simple installation, testing, and maintenance.

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

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

Used. Sold as is. No returns accepted.

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

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

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INNOVAIR FLEX SYSTEM SENSOR D4120 4-WIRE DUCT SMOKE DETECTOR BRAND NEW SHIPPING VIA USPS

I have 2 of these. Never installed.

Brand new Innovair system sensor 4-wire duct smoke detector

Brand New still in the box! Innovair Flex System Sensor model # D4120 4-Wire Duct Smoke Detector

This System Sensor model D4120 4-wire duct smoke detector is manufacturer refurbished.

System sensor model number D4120 4 wire duct smoke detector

New D4120 Duct Detectors. all in original box and packaging.

Photoelectric, integrated low-flow technology. • Air velocity rating from 100 ft/min to 4,000 ft/min (0.5 m/s to 20.32 m/sec). • Versatile mounting options: square or rectangular configuration.