Description

The character of siren list as follow:    
1.Power arbitrary choices: (cell orbattery) DC *2 V, *4V, *8V, the exchange of **0 V, **0V, **0V
2. High frequency; **0 Hz - ***0Hz alarm sound very easy to distinguish between noise and the environment, clear, piercing and sharp.
3. Extensive application areas: automobiles, trains, ships, airports, ports, Crossing platform, silver floor, schools, hospitals, residential areas, shopping centers, warehouses, hotels, military units, factory construction, mining, sluice, and other places.
4. Strong compatibility; With smoke detectors, gas gas sensors, infrared sensors, liquid level sensors, timer, anti-theft alarm system, such as the various-connected sensors can also be used alone, which is different from other alarm signals in the high-frequency sound alarm sound source.
5. Several installation forms: horizontal, vertical, activities - and vehicle-mounted, fixed, wall-type, embedded.
6.Design: fashion, unique, innovative, artistic, and easy to integrate into the use of premises,