The Edwards hazardous location fire alarm bell is the finest heavy duty, hazardous location bell available today. It delivers a distinctive, clear ring that is free of mechanical clatter. Vibrating bells produce a long, continuous ringing sound. The striker continues to rapidly strike the gong as long as current is applied.

The bell has been designed for indoor applications requiring supervision of signaling circuit field wiring but may be used for unsupervised applications as well.

Mounts to any solid surface using two 3/8" (10mm) fasteners. Each unit is supplied with wire leads and a sealing fitting for connection to 3/4" (19mm) conduit.

The 439DEX fire alarm bells are ideally suited for fire alarm applications in refineries, gasoline storage and dispensing areas, flammable liquid areas, pray spray booths, aircraft refueling areas, graineries, flour mills, coal mines and other combustible dust areas.