These amazing backup alarms stand the test of time. Rugged and durable the Whelen backup alarm meets all neccessary regulatory requirements including OSHA and Bureau of Mines. All models operate on 12-24VDC. With urethane sealed electronics the alarms can be steam cleaned or pressure washed without

These amazing backup alarms stand the test of time. Rugged and durable the Whelen backup alarm meets all neccessary regulatory requirements including OSHA and Bureau of Mines. All models operate on 12-24VDC. With urethane sealed electronics the alarms can be steam cleaned or pressure washed without