Xvision wireless smart beams detect intruders and visitors as soon as they set foot on your property and offer the ultimate in protection and early detection of crime. They are completely wireless, require no wiring to be run from the beam to the receiver and do not false alarm, their multi-beam design also prevents them from being triggered by animals. They are supplied as a pair and can be up to 60m/100m apart. The beams create a virtual invisible fence between them, which is made up of IR beams. In order to trigger the system the IR beams must be broken.