The Ear-2000 Assistive listening device / sound amplifier is commonly called a concrete
microphone or electro-acoustic receiver. It is packaged by the
manufacturer as an experimental bomb detection device because of its
capabilities to pickup minute vibrations such as the faint ticking of a bomb.
This device is often used by professional plumbers to locate leaky pipes
embedded in the concrete foundation of a house. It is also used by counter
surveillance and security experts to identify sources of voice leakage in a
room.
The Ear-2000 Assistive listening device / sound amplifier will amplify vibrations (listen to) virtually any solid surface including concrete, glass, steel, etc. with exceptional clarity. This microphone is designed to convert minute vibrations to voice band audio that can be received by headphones or secondary measurement equipment.
Recommended Test: place the Ear-2000 Assistive listening device / sound amplifier against a window and quietly whisper in the direction of the window. You will be amazed at the clarity and amplification of your own voice picked up from the surface of the window. Also works when the vocal source is on the other side of the glass.
SPECIFICATIONS:
Internal automatic gain control
Built in contact element
Connects to any standard tape recorder
Recorder output is compatible with audio spectrum analyzers
Uses 9V battery ( not included)
INCLUDES:
Ear Phones
Instruction manual
SIZE:
3 3/4″ x 2 3/8″ x 1″
NOTE: As with all our "sound enhancing" products, this unit is not designed or to be used to surreptitiously intercept oral communication. Use for this purpose seriously violates federal laws.
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