Imagine an intruder sneaking toward your perimeter, certain they've slipped past every obvious defense. What they don't realize is the ground itself is watching. Meet InvisiFence Plus, SensoGuard's buried sensor cable system for perimeter security. Hidden beneath the surface, it catches threats before they ever reach your boundary.
Traditional fences are like neon signs for intruders: easy to see, easier to sabotage. InvisiFence Plus flips the script. Its buried sensor cable picks up vibrations, whether it's footsteps, a vehicle, or digging activity, detecting danger before it reaches the boundary. Hidden underground, there's nothing exposed to cut or smash.
Key Takeaways: InvisiFence Plus's buried sensor cable creates a detection zone along the perimeter and cuts false alarms by more than 90% versus camera-only systems, per SensoGuard's own testing. Every sensor is IP68-rated to MIL-STD-810G and works from -40°C to 85°C. Burial depth is flexible, 30cm to 3m, without a performance penalty.
How does InvisiFence Plus detect intruders before they reach the fence?
InvisiFence Plus creates a continuous detection zone roughly 6m wide and up to 25m deep along the buried cable run, wide enough to catch someone approaching or walking the fence line, not just the instant they cross it (SensoGuard, InvisiFence Plus spec sheet). Up to 38 sensors connect per string over a single RS485 bus, so strings can be combined end-to-end to secure anything from a residential fence line to a multi-kilometer border.
How does it avoid false alarms from animals and weather?
A Smart Adaptive algorithm filters out the vibration signatures of small animals and birds automatically, and the system isn't affected by wind-driven vibration, blowing debris, fog, or beam misalignment, the specific failure modes that hurt fence-mounted and IR-beam systems most (SensoGuard, InvisiFence Plus spec sheet). For larger animals like deer, InvisiFence Plus pairs with analytics cameras to verify threats visually before an alert is triggered.
That combination is what drives the false-alarm reduction: seismic detection triggers the alert, and the camera confirms it, cutting false alarms by over 90% compared to camera-only systems.
How deep does InvisiFence Plus need to be buried?
Installation depth is flexible, typically 30cm to 3m, without a performance penalty, so it doesn't demand the precise, costly burial tolerances that fiber optic or leaky coax alternatives require. It also isn't affected by nearby fences or other metal objects, unlike buried coax-based systems, which can pick up interference from nearby metalwork (SensoGuard, InvisiFence Plus spec sheet). Sensitivity can be retuned per sensor from the HUB Unit after installation, without re-digging the cable.
Where does InvisiFence Plus work best?
Picture a luxury resort: guests take in the views while InvisiFence Plus guards the perimeter without a visible fence line in sight. Or a sprawling solar farm, where acres stay protected without costly, visible barriers. From private estates to critical infrastructure, the same buried cable adapts to sites where a visible fence isn't an option. See how it compares to other buried and covert options in our underground sensors comparison.
Intruders might think they hold the advantage. InvisiFence Plus proves otherwise: silent, unseen, and detecting long before the fence line is ever reached.
Frequently Asked Questions
How wide is InvisiFence Plus's detection zone?
InvisiFence Plus creates a detection zone approximately 6 meters wide and up to 25 meters deep along the perimeter, wide enough to catch someone approaching or walking the fence line, not just the moment they cross it.
How does InvisiFence Plus avoid false alarms from animals?
A Smart Adaptive algorithm filters out the vibration signatures of small animals and birds automatically. For larger animals, the system pairs with AI-enabled camera verification, so a seismic detection is confirmed visually before triggering an actionable alarm. Combined, this reduces false alarms by over 90% compared to camera-only systems.
How deep is InvisiFence Plus buried?
Installation depth is flexible, typically 30cm to 3m, without a performance penalty, which is one reason it's straightforward to install correctly compared to alternatives like fiber optic or leaky coax cable that require precise burial depth.
Do nearby fences or metal objects cause false alarms?
No. InvisiFence Plus isn't influenced by nearby fences or other metal objects, unlike buried coax-based systems that can pick up interference from nearby metalwork. Its adaptive self-learning algorithms are tuned to recognize footsteps, digging, and vehicle signatures specifically, so it doesn't need a minimum clearance distance from existing fencing.