1. it has eight for public security, fire fighting, rescuing, engineering, way-making, protocol, siren and aerial defence.
2.the product combined with long row warning lamp can be additionally provided with lamp control.
3.the internal circuit adopts digital technology and the alarm sound is controlled with single chip microcomputer, the power amplifier circuit adopts high efficiency square(or annular)transformer and imported power tube with
stable frequency and strong disturbance resistant performance, the technical indexes are in accordance with national standards.
4.the appearance of the main elegant, steady, classical and decent, and can be freely chosen according to different powers, the split type structure can effectively separate the controller from the main engine, which facilitates the installation.