KWL-1000

Audio Microphone Surveillance Kit
This is a profession grade audio microphone surveillance kit. For discrete listening of conversations through various mediums and long range monitoring of live conversations. The kit contains the following:-

    * Portable high gain audio amplifier with highly selective preamplifier and headphone unit. The device amplifies the signal derived from the set of supplied microphones from -80dB. The amplifier has a audio output for direct connection to a recoding device through its mini jack socket and mini jack socket for the supplied earphones.The amplifier which is powered from a 9 V battery will operate up to 10hours on a single Lithium battery.

    * Contact Microphone - based on a non piezoelectric transducer, which can pickup the word spoken from behind a concrete wall up to a thickness of 15cm. But this parameter can be changed if the surface (wall), which is lined with material such as thick wallpaper, Styrofoam insulation, etc.

     *  Contact Microphone – can be used in hotel rooms, offices, boardrooms etc by  listening through the central heating pipes, doors, windows, floors, walls etc.

    * Directional microphone - a high quality miniature low-noise capacitive microphone with highly directional characteristics: allowing you to pickup normal conversation from a distance of up to 20 m. It is small enough that it can be easily held in your hand and covertly directed at the conversations that you want to hear or record.

    * Microphone on "Wire" – High sensitivity omni directional  microphone for recording conversations through the ventilation ducts ceiling voids, hollow walls electrical conduit, floor boards etc. Once you know where, you simply send down our microphone and listen to what is happening in the room.

Specifications

KWL-2000

Audio Microphone Surveillance Kit with Needle Microphone

This audio surveillance microphone kit is the same as the kit above but with the addition of a special 100mm needle microphone designed to penetrate hollow walls and voids in floors and ceilings etc. The kit is also supplied in a foam lined aluminum carrying case.

KWL-M

Audio Needle Microphone

The microphone is used to monitor the audio through a narrow slit or through the walls lined with materials such as insulation. .

By the use of special inserts high mic sensitivity is achieved with outstanding sound quality and can be used with the above kits or with your own recorder.

Microphone with needle dimensions: Ø 2 x 100 mm

Fitted with 3.5mm mono jack plug.

KWL-3000

Wireless Contact Microphone Kit

High-sensitivity contact monitor system for audio listening through walls windows doors etc with unique audio transmitter built-in for wireless monitoring and selectable noise filter. The unit comes complete with a surface microphone and needle microphone for insertion into small holes and crevices for optimum clarity.

The KWL-3000 can transmit all audio from its microphones to a remote receiver (supplied separately) so you can remotely record or listen to the transmitted audio. There is an audio recorder socket also, so you can connect a recorder via the 3.5mm jack socket.

Features:
Built-In rechargeable battery: 3.7V Lithium
Continuous monitoring time:100hours;
Noise Filter: A(200Hz)  B(800Hz) C(1200Hz) 
Probe Sensitivity -70dB
Amplification: X-20000  
Built-In FM audio transmitter
Microphones: Wall Contact and Needle Mic
Audio Record Socket
High Quality Headphones