Underground Seismic Security Sensors

Cable & Pipeline Theft

Perimeter Fence Monitoring

Invisible Intruder Defence

Covert Camera Kit

Home Perimeter Alarm


Seismic Sensors that add an extra layer of protection

Climate Proof

Unlike other buried security technologies such as leaky coax or fiber optics, our rugged systems offer 365/24/7 protection, even under extreme weather conditions.

Vandal Proof

Our seismic systems are impenetrable and cannot be dug under, climbed over, or sabotaged without triggering an event or threat.


Our seismic sensors and processing units are buried completely underground, making them undetectable to intruders while keeping the environment intact.

Farm Protection
Home Protection
Energy, pipeline and pump Installations
Airports, Prisons and strategic Installations
Anti Poaching Operations
Military and Law enforcement
Sensor Technology

Downloads - Standalone seismic sensor brochure

SG-1 Underground Sensor

SG-1 User Manual

Invisifence Perimeter system

Technical Specs SG-1

Covert Camera Kit


+27 82 8392438

Hoedspruit, 1380, South Africa

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©2018 by Sandfire Defence. 

a division of Sandstream Investments Pty Ltd