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>> Want to hear the magnetic fields you encounter in stereo? Strap on a pair of these amplified coils and its like being able to hear the invisible fields. Simple single axis magnetic pick-up coils with built-in audio amplifiers translate the frequency of the magnetic field to the same pitch of audio tone. You can easily distinguish the drone of 60 Hz, as well as identify other frequencies when present such as you would find near LED lights, TVs, dimmer switches and so on. And the sensitivity is such that the sound is louder in the ear nearest the field giving a realistic sensation of hearing the field, making it extremely useful for locating sources of the disturbance.
>> A pair of devices, each with a AA battery is included. Use your own headband, earphones, hands, or just about any hat which covers your ears to hold them in place. Of course, they can be used to amplify the sound of a telephone earpiece as well.
>> Item Number: 00-31
>> User Type: Beginner
>> Total Price: $19.95
>> To order please click below:
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