YF-3 Fire Alarm Control Panel YF-3 Fire Alarm Control Panel 2 Zone YF-3 Fire Alarm Control Panel 4 Zone YF-3 Fire Alarm Control Panel 5 Zone YF-3 Fire Alarm Control Panel 8 Zone YF-3 Fire Alarm Control Panel 12 Zone YF-3 Fire Alarm Control Panel 16 Zone YF-3 Fire Alarm Control Panel 20 Zone YF-3 Fire Alarm Control Panel 24 Zone