| 摘要 |
A device for acoustic rodent control, comprising a diffuser constituted by a contoured solid of revolution that is provided, in a downward region, with a cavity in which a piezoelectric element is applied, the piezoelectric element being controlled by an electronic board contained in a box body that supports the diffuser; the electronic board supports an electronic circuit that comprises means for detecting the vibratory state of the piezoelectric element.
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