Fire Alarm Goes Off At Local Apartment Building

The alarm sounded for about 10 minutes. I had been to this building may times so I knew where most devices were. The notification device featured is a System Sensor Spectralert Advance model P2RK (the K is because it is an outdoor weather proof model). If I had a chance I would have shown more devices, but the store was closed. The system is an FCI Gamewell addressable system. www.romeocat128.wixsite.com/home