400W Industrial Siren Air Siren Air Raid Horn Motor Driven Siren 140db

140db Sound：The sound of this air alarm is about 140db, which can be heard over a long distance (about 300m). Iron Shell：The shell is made of high-quality iron and coated with red paint to ensure excellent performance and durability. The metal mesh cover installed in the two speakers to protect the motor alarm. High Efficiency：Equipped with 400W pure copper motor, high efficiency, speed 1000rev/sec, support the continuous work of industrial alarm. Easy Installation：There are four pre-drilled holes on the solid base for easy installation. After the warning siren is connected to the power source, it can work. Application：Air raid sirens are suitable for ships, mines, reservoirs and airports, and can be used for any purpose, such as warnings, signals and alarm horns.