Manufacturers of Covert Audio & Video Surveillance Equipment, including GSM Bugging Devices, UHF Spy Transmitters & Receivers, Hidden Cameras, Voice Recording, Vehicle Tracking, Listen Through Wall Devices & Bug Detectors.

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PO Box 6816, Leicester LE2 0XB. United Kingdom

This unit is a Professional Wall Contact Microphone device, designed to listen through walls and virtually any other surface including windows, concrete, steel, floors etc. This device is ideal when access to the targeted premises is difficult or impossible.


Search & Rescue: Hear people trapped in basements, elevators, under rubble etc.

Bomb Detection: Listen to packages to indicate a ticking clock.

Diagnostics: Find problems in engines, transmissions and other mechanical apparatus.

Pest Control: Find location of insect or rodent infestations, active termite colonies in walls, ceilings and floors.

Plumbing: Find locations of leaking pipes in concrete or walls.


Amplifier Unit – 85mm X 54mm

Mic. – 29mm Dia. X 20mm Ht.


Amplifier Unit – 145g

Mic. – 57g

Power Supply:

9 Volt battery X 1

Battery Life:

55-60 hrs (alkaline)

Input & Output:

Mic. input 3.5mm Mono Jack

Earphone Output 3.5mm Stereo.

Record Output:

3.5mm Mono

Professional Listen Through Wall Device.  (NAD FX-3)

The device uses a high gain extremely sensitive ceramic microphone made from stainless steel. The sensor has a magnetic base with a central protruding needle connected to the ceramic sensor and converts the vibrations into electrical audio signals, these audio signals are then amplified so that they can be heard. It also incorporates an audio filter control adjustment allowing the enhancement or rejection of different sounds.

Technical Specifications:

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