Terrain following and volumetric sensors create an invisible electromagnetic detection zone along the path of parallel cables, which sense change and trigger when events, such as intruders, penetrate the wires.
Portable outdoor sensor
Repels® is a portable outdoor security sensor that operates like a radar fence. It creates an invisible electromagnetic detection zone along the path of two parallel cables that are supported by poles driven into the ground. Repels is designed specifically for perimeter protection and has none of the limitations of line-of-sight sensors.
Terrain-following volumetric sensor
The XField® sensor is a terrain-following volumetric sensor that creates an electrostatic field around a set of 4 or 8 parallel field and sense wires that causes its processor to sense changes when events, such as intruders penetrating the wires, take place.