Want to hear through a brick wall or concrete wall? We supply these devices to many different professionals including pest
controllers, engineers, mechanics, and people who deal with pressured
pipes, not to mention those who just love gadgets!
Wall microphone
This unit has a built-in amplifier
earphones and wall mic. It is a very sensitive device. This wall
microphone device was designed for situations where access is limited or
impossible. This is a high gain oscillating receiver which uses a
special contact device. The contact can be placed against doors made of
glass, concrete, or metal, up to 30cm thick. We have used it
successfully through besabrick walls. The oscillator can then be
connected to a recorder to record all conversations. The user can also
listen to the conversations live, while recording.