UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" CORROSION RESISTANT HEAT FLOWED EPOXY FINISH LOW CURRENT DRAIN THE EDWARDS 878EX AC SERIES ARE HEAVY-DUTY HIGH DECIBEL VIBRATING HORN SIGNALS DESIGNED FOR USE IN HAZARDOUS LOCATIONS. TWO MOUNTING BRACKETS ARE PROVIDED ON EITHER SIDE OF THE UNIT FOR WALL MOUNTING. THE HOUSING IS TAPPED ON ONE SIDE FOR 3/4"" (19MM) CONDUIT TO ALLOW FOR FIELD WIRING INSTALLATION. FOR USE IN DUSTY HAZARDOUS ATMOSPHERES WHERE A DISTINCTIVE URGENT SIGNAL IS REQUIRED FOR TIMING SCHEDULING PAGING AND GENERAL ALARM APPLICATIONS. TYPICAL APPLICATIONS INCLUDE USE IN MINES PETROLEUM PLANTS GAS PLANTS GRAIN ELEVATORS FLOUR MILLS PAPER MILLS TEXTILE PLANTS AND TANKERS.