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GN-503

Gentex SR (917-0071-002) 120 VAC smoke alarm

What Replaces the Gentex S1209F, GN-503 and CO1209 Alarms?

CO1209The Fire Alarm SupplierOct 04, 2026

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The Fire Alarm Supplier stocks over 20,000 parts from more than 100 manufacturers, across fire alarm and detection, gas and flame detection, fire suppression, HVAC and hydronics, and in-building communications.

We supply contractors, system integrators, facility managers, government agencies, educational institutions and healthcare organisations with genuine manufacturer parts.

Much of what we carry is no longer easy to find. Alongside current production, we stock legacy and discontinued parts for systems already installed, the panel board, the sounder base or the valve assembly that keeps an existing installation running rather than forcing a replacement.

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Registered address: 124 Broadkill Rd, Suite 600, Milton, DE 19968, United States

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