Quantum Technology Services
Seismic Acoustic Sensor System
The new digital seismic-acoustic unattended ground sensor from Quantum Technology Services has a wide, omnidirectional range which can detect footsteps more than 150 feet away. The 2 x 2 in. cylindrical sensor can also detect and classify land, water and air vehicles, digging, machinery and tunneling. The device—which has no moving parts—also features integrability with other systems, no special handling requirements, power management to support remote long life applications and more.
http://qtsi.co/technology/applications/