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Just 23 CHRYSLER AIR RAID SIRENS . . . To Alert an Entire City the Size of Cleveland 

IN SECONDS . . . an entire city of nearly 1,000,000 people spread out over a seventy-five square mile area can be warned of impending danger.  And if the city were spread out in the same manner as Cleveland, Ohio, a remote-controlled system of just twenty-three Chrysler Air Raid Sirens could do the basic job.  Compare this number with the necessary quantity of any other warning device and you will understand the importance of selecting Chrysler . . .  the Siren sounding the "loudest warning ever heard."

Smaller communities too will find the Chrysler Siren ideal for their protection . . . because, thanks to its own individual power plant, the Chrysler Siren can be operated manually, independent of any system, from a fixed location or from a moving truck or boat.

The mighty 180 horsepower V-8 Chrysler Industrial Engine powering the Chrysler Siren enables it to develop 138 decibels of sound, 100 feet from its throat.  Under favorable conditions this shrill voice can be heard anywhere within an eight-mile circular area.

In plotting effective coverage, Chrysler Siren Layout Engineers take into consideration the varying intensities of normal urban noises which must be overcome.  Learn what you community requires.  Learn why a Chrysler Air Raid Siren is a sound investment.  Write . . . Dept. 111, Siren Layout Service, Industrial Engine Division, Chrysler Corporation, Trenton, Michigan.