CONCRETE MICROPHONE
Listen through walls with this
EAR200 unit. Super sensitive unit for super covert listening. The
EAR-200 (Bomb Detector) will listen to virtually any surface with the built-in
contact element. Simply place the contact against the surface to be tested
(metal, air ducts, plumbing, conduit, windows, etc.). The internal automatic
gain control will deliver clear, undistorted sound. The EAR-200 can be
connected to any standard tape recorder. The recorder output can also be
used with audio spectrum analyzers and other measurement equipment for
detailed analysis.
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