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The unit is making a clicking sound. I thought humans could not hear Ultrasonic tones?

April 26, 2017hear humans sound ultrasonic

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The unit is making a clicking sound. I thought humans could not hear Ultrasonic tones?

1 Answer

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The “clicking” sound you hear is normal. Pests will hear the ultrasonic tones in addition to the clicking. If your unit is plugged in and switched on, with the speaker set on “C” and you cannot hear the clicking, it is possible the unit is defective and needs to be repaired.