Published: August 2013
By: System Sensor
System Sensor’s SpectrAlert Advance low-frequency notification appliances meet the January 2014 requirements for all new commercial sleeping spaces to use an audible device that produces a low-frequency tone around 520 Hz. Lower frequencies are more effective at waking sleeping individuals, including individuals with mild to severe hearing loss. These sounders and sounder strobes integrate directly with fire alarm control panels and feature a plug-in design and onboard shorting spring.