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MSL-FS-0.5NM is an electric horn which uses DC 12V and operates by solar power system and batteries where commercial electricity is unavailable.
Omni directional, transmit sound as 360°. The Horn is made of phosphor bronze which improves the echo of sound and durability.
It is possible to control a point of contact. It could be used along with fog detector or visibility meter.
Frequency is changeable 300Hz~500Hz, standard frequency is 400Hz. Possible to control on-off by timer.
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