AudioMaster and Atkinson Dynamics Intercoms are engineered to deliver dependable performance, maximum flexibility, and extended service life under the harshest conditions.  Federal Signal’s intercoms feature wall-mount, two-way, desktop, safe area, and hazardous environment intercoms.  Our modular design enables you to specify a system with an unlimited number of stations, customize a system for a variety of environments, and further expand your system in the future.  

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