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Duct Smoke Detectors
System Sensor D4120 4-Wire Photoelectric Low-Flow Duct Smoke Detector
4-Wire Photoelectric, integrated low-flow technology. Air velocity rating from 100 ft/min to 4,000 ft/min. Versatile mounting options: square or rectangular configuration.
DH100ACDCLP Four-wire photoelectric duct smoke detector
DH100ACDCLP is a four-wire photoelectric duct smoke detector.
- Four-wire connection
- Photoelectric smoke detection
- Duct application
SSU-SL-2000-P Photoelectric Duct Smoke Detector
SSU-SL-2000-P is a conventional photoelectric duct smoke detector for monitoring air moving through HVAC ductwork. It operates on 24V AC/DC, 115V AC or 230V AC and supports air velocities from 100 to 4,000 feet per minute. The housing provides alarm and trouble relay outputs.
- Photoelectric duct smoke detection
- 24V AC/DC, 115V AC or 230V AC operation
- 100–4,000 ft/min air velocity
- Alarm and trouble relay outputs
System Sensor D2 Two-Wire Photoelectric Duct Smoke Detector
System Sensor D2 InnovairFlex detects smoke in air-handling ducts using a two-wire photoelectric sensor. Its pivoting modular housing can be arranged in a square or rectangular footprint. The detector operates in duct air velocities from 100 to 4,000 feet per minute.
- Two-wire photoelectric duct smoke detection
- 100-4,000 ft/min duct air velocity
- Square or rectangular housing configuration
- Plug-in sensor; cover-tamper indication
SSU-SM-501-P Duct smoke detector
SSU-SM-501-P is a duct smoke detector.
- Duct smoke detection
