Highly effective ultrasonic device with on-board power supply. Frequency-modulated ultrasonic sounds that signal the marten "highest danger" by animal fear and warning cries. No habituation effect.

Marten defense with double effect: avoidance of sound shadows through two speakers. Particularly suitable for narrow and compactly installed engine compartments. Note: Ultrasound does not penetrate matter. Before any marten repellent measure to recommend - STOP&GO scent mark remover, item no. 903945