Microphonic System - GeoMic

Sensitive and reliable

There are 2 variants to the GeoMic product line, GeoMic and GeoMic Pro. The GeoMic detection analysers are used in conjunction with the Alpha sensor cable and offers an extremely reliable Perimeter Intrusion Detection System (PIDS). Designed to detect an intrusion attempt via cutting, climbing and lifting on chain link, welded mesh and palisade fencing.

The sensor cable works like a microphone, it effectively ‘listens’ to sounds along the fence line and relays these to the analyser. This unit amplifies, filters and analyses the sounds then the advanced evaluation algorithms determine if an alarm should be

The GeoMic/Pro analyser interprets the signals from the sensor cable then transmits an alarm signal, should those noises fit the alarm criteria.


  • Accurate detection of cutting, sawing and climbing
  • High sensitivity (POD) with minimum false alarms (FAR) and minimum unwanted alarms (NAR)
  • Quick and easy set up
  • Detection zones up to 200 meters
  • Low total cost of ownership (TCO)
  • Simple integration into third party alarm systems

The Alpha sensor cable

The Alpha sensor cable is the core of Heras’ Microphonic PIDS, designed for enhanced perimeter security. The optimum product for CNI and high security locations when used with GeoMic analysers.

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