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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
265+ compression for efficient storage
Installs quickly in standard door cutouts for residential or commercial settings
individually packed
and primary listening areas
accurate installation
System Sensor D4120W Brilliant 265+ compression for efficient storageSystem Sensor D4120W Watertight 4 Wire Photoelectric Duct Smoke Detector System Sensor D4120W Watertight 4 Wire Photoelectric Duct Smoke Detector is designed for reliable smoke detection in HVAC duct systems exposed to harsh indoor and outdoor environments. Its NEMA 4 rated enclosure and low flow sensing technology ensure accurate performance while simplifying installation, testing, and maintenance. NEMA 4 watertight enclosure rated for protection
