Siren Alarm

Siren is a piece of equipment which produces loud and high pitched warning sound. We offer you the best siren effects at unbeatable prices. Such standard audible warning sounds are not required by many of our clients and in great demand. The most modern sirens nowadays are civil defense or air raid sirens, sirens on emergency service vehicles such as ambulances, police cars , and fire engines. Most fire sirens have a single alarm sound and are mechanically driven by electric motors with a rotor attached to the shaft. There are even electronically driven speakers, though not very common. Electronic sirens incorporate circuits such as oscillators, amplifiers and modulators to synthesize a selected tone.