A Swedish company, “Indusec”, has created a sonic weapon, an intense sound alarm, whose name is "INFERNO" (that means HELL).
The system, called "Inferno", is a type of alarm (or siren) that uses four simultaneous frequencies between 2 and 5 Khz with a power of about 123 dB that, when in contact with the target, cause acute symptoms of disorientation, dizziness, nausea and chest pain, forcing the intruder to flee the protected area.
If you do not flee and continue to be exposed to the sound, you may even vomit and fall.
The system is being sold for installation against invasions of stores, warehouses and security installations.
Official website:
http://www.inferno.se
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