Sensor sees through walls.

• Position: Tech Talk - Geophysical Survey Systems Ultravision - Brief Article

Soldiers and security guards in the market for better sensors may be interested in a new motion detector that sees through concrete walls.

Geophysical Survey Systems Inc., of North Salem, N.H., developed an UWB (ultra wideband) security technology called Ultravision.

This equipment can monitor movement through concrete reinforced walls an floors, said company president Dennis Johnson.

No other technology currently is available to see through concrete walls, adobe...