Security electric fence

 
Multi-zone security electric fence used on top of a physical barrier

Security electric fences consist of wires that carry pulses of electric current to provide a non-lethal shock to deter potential intruders. Tampering with the fence also results in an alarm that is logged by the security electric fence energiser, and can also trigger a siren, strobe, and/or notifications to a control room or directly to the owner via email or phone. In practical terms, security electric fences are a type of sensor array that acts as a (or part of a) physical barrier, a psychological deterrent to potential intruders, and as part of a security alarm system.

  • advantage: less expensive than many other methods, less likely to give false alarms than many other alternative perimeter security methods, and highest psychological deterrent of all methods.
  • disadvantage: potential for unintended shock.