FIELD: cattle breeding.
SUBSTANCE: invention relates to livestock sector, in particular, to protection systems of objects of agroindustrial complex, power distribution and receiving devices from rodents (rat, mouse), and can be used in industrial and commercial premises, granaries, warehouses, poultry and livestock complexes. Ultrasonic device for repelling rodents consists of an acoustic system having three identical columns arranged in space and a horn column on a piezoelectric effect located in the centre and releasing ultrasound. Device also consists of electric system, which includes power sources, converters of electric current and voltage and regulators, supplying column with frequency of required range.
EFFECT: invention provides an increase in the effectiveness of the method of killing rodents.
1 cl, 3 dwg
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