Gentex GN-503F 12/03 More of our products from

More of our products from Simplex

and plain and FIRE-printed devices

decimal address switches

The robust construction not only offers high strength but also ensures durability over time

Gentex GN-503F 12/03 More of our products 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