Gentex Corporation GN-503FF IN STOCK causes the detector to automatically

causes the detector to automatically signal an alarm condition but dust and debris accumulated over time does not change alarm sensitivity

The device provides synchronized strobe notification for fire alarm events while allowing each appliance to be individually addressed and monitored by the control panel

The SD-T36 is equipped with multiple precision-drilled holes that pull air evenly from across the duct

Pet owners are protected from false alarms through Vertical Beam Shaping (VBS)

Gentex Corporation GN-503FF IN STOCK causes the detector to automaticallyThe GN 503 (120VAC 9VDC) Series of combination photoelectric smoke and electrochemical sensor carbon monoxide alarms are for use as evacuation devices in all dwelling units, including but not limited to homes, apartments, hospitals, hotels, motels and other commercial occupancies. The GN 503 Series is listed in compliance with ANSI UL 217, ANSI UL 2034, for installation per NFPA 720 and NFPA 72. Available in three models, the GN 503 Series is