Sensor detects intruders on the move.

• Author: Williams, Robert H.
• Position: Tech Talk - Brief Article

A deployable intrusion system featuring an invisible electromagnetic detection zone along a perimeter was on display at a recent trade show in Birmingham, England.

Manufactured by Senstar-Stellar Corp. of Carp, Ontario, Repels offers a "detection zone along the path of two parallel wires that are supported by poles driven into the ground," said a company official. Unlike line-of-sight sensors, this system can be rigged in any terrain, including...