Gentex Corporation GN-503FF IN STOCK Pet owners are protected from

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

The Edwards SD-T18 18-inch Sampling Tube is engineered for use in duct smoke detection systems requiring accurate air sampling in medium-width ducts

The LED blinks with each poll received

11 field selectable candela settings

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

Gentex Corporation GN-503FF IN STOCK Pet owners are protected fromThe 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