Now it is very easy to build your own siren sound alarm, small enough to be carried in a garment pocket. This powerful audio-visual alert device is realized using the renowned Arduino platform. The 9V ...

HONOLULU (HawaiiNewsNow) - You expect to hear them around noon on the first working day of the month. But early Thursday morning emergency sirens sounded. "It was almost painfully loud," Waikiki ...

When the Shell Oil refinery's emergency siren reverberated through downtown Martinez yesterday afternoon, most people reacted with a quizzical furrow of their brow before continuing about their ...

Deaf and hard-of-hearing St. Paul residents and their families are getting some peace of mind from a new program that offers a "visual smoke alarm" with a piercing siren and a strobe light. Deaf and ...