Amazing Wall Probe allows you to Listen through Walls, Windows and More.
Wall Probe Ear 2000 Surface Mic Sound Amplification System
Detect and monitor sounds through virtually any surface. The EAR-2000 Wall Probe delivers clear, undistorted sound through walls, windows, metal, air ducts, plumbing, conduit and more. Originally intended for bomb detection training and testing, this device can also be connected to standard recorder and other measurement equipment so you may listen closely.
Use our surface mic to listen for faint sounds through virtually any solid surface. The probe features a built in contact element and has an internal automatic gain control that does not need constant adjustment.
This microphone is designed to convert minute vibrations to voice band audio that can be received by headphones or secondary measurement equipment.