Cooper Wheelock MEDC DB3/XB11 Combination Sounder/Beacon 
Exd(e), Heavy Duty Industrial and Marine, Weatherproof
The MEDC DB3/XB11 is a weather-proof combination Sounder/Beacon. The DB3/XB11 is mounted on a sturdy, drilled, painted, stainless steel plate. These Combination Units are pre-wired as such that a single input operates the Sounder and Beacon simultaneously.

These MEDC Combination Units are available for use in potentially explosive atmospheres and dedicated units are available for use in demanding environmental conditions to be found onshore and offshore in oil, gas and petrochemical industries.