额定电压：12V DC /24V DC ;  110V AC/ 220V AC/ 380V AC 
功率: 50W
声压/分贝：117±3dB(at Rated Voltage at 1m)      
最大电流：90mA~2300mA
音频： 5-Tone 
重量：2600g~3300g 

Function Introduction:
●High-power alarm siren, industrial electronic alarm horn. Signal speaker. Clear and loud voice alerts, for industrial alarm, marine alarm alerts, electronic siren
●Kinds of alarm voice for choice flexibly: (12 alarm voice) (20 kinds of music+alarm voice)
●Steel housing, easy for operation and installation, durable. Material of horn: PC.
●On-off switch and volume regulator are equiped inside, users are able to adjust the voice and volume.
●It is apply to all kinds of overhead crane, lifter, conveying machine, port and pier, marine machinery, site of steel industry, petroleum chemical industry, complete set of equipment,etc.
●IP Grade: IP55.
●Customizable service: remote control, light-control, infrared control, audible and visual alarm after power cut, sound&light alarm with battery, sound&light alarm with storage battery, voice reminding,etc.