INVASION PREVENTION DEVICE

摘要

PROBLEM TO BE SOLVED: To enable to be hardly discovered by an invading animal by bringing an invasion prevention device for discharging a high voltage to be small and reduce visibility due to the surrounding grass and trees and bring the device not to loose its function as the invasion prevention device in a short time by inhibiting learning effect by animals especially having high learning abilities, as a host site is easily varied and not known by those animals. SOLUTION: This invasion prevention device is constituted by equipping a wire withdrawing unit 1 for manually withdrawing the wire equipped with a high voltage discharging electrode 6 or a terminal for connecting the wire, a manual power-making switch 2 and a boosting circuit 5 for boosting a cell 3 and continuously or intermittently discharges the high voltage from the discharging electrode 6 by operating the boosting circuit 5 when the device detects an external force to the wire by an invading animal in a state of switch on of the manual power making switch 2.