Intercoms
-    310X-MV AudioMaster® Hazardous Location Two-Way IntercomFederal Signal's AudioMaster® 310X-MV is a two-way industrial intercom that provides reliable communications and superior sound quality. This unit has a rugged Type 4X housing and is rated for Class I, Division 2, Groups A, B, C, and D; Class II, Division 2, Groups F and G and Class III. 
 
     
  