The MICALERT Microphonic Fence Sensor Cable for rigid metal fences. It is a passive electronic intrusion detection system designed to secure outdoor rigid perimeters, such as metal, palisade, wrought iron, and aluminum fences. It operates by analyzing noise patterns to detect the sharp frequency vibrations specifically associated with forced entry attempts. To prevent nuisance alarms, the system employs three distinct layers of false alarm filtration, including real-time threshold adjustments and wind rejection, which effectively disregard low-frequency signals caused by weather conditions.

The MICALERT is designed as an affordable, “plug and play” solution that attaches directly to the fence without the need for protective conduits, specialized tools, or certified security technicians. The maintenance-free sensor cable comes with a two-year warranty, features a UV-rated coating for extreme weather protection, and offers 500 highly adjustable sensitivity levels to adapt to various environments and fence conditions. Highly versatile, it connects via dry contact relays to any standard alarm system or DVR, making it an ideal security solution for a wide range of locations including commercial areas, data centers, solar farms, gated communities, and equipment storage facilities.

MicAlert System Layout:

The sensor cable comes pre-cut in 250 ft (75 m), 500 ft (152 m), or 1,000 ft (305 m) lengths.
Each LPU processor (analyzer) monitors up to two zones (two spools).
Each processor supports up to 2,000 ft (600 m) total, split across two zones of up to 1,000 ft (305 m) each.
Each kit includes an LPU processor in a weatherproof enclosure, plus the selected sensor cable length.
For larger perimeters, you can combine as many kits as needed.

How Does the MicAlert Fence Alarm System Detect Intruders

The system uses three layers of false-alarm filtering.

1. The detection algorithm is designed to detect only sharp frequency vibrations associated with intrusion attempts, while filtering out the low frequencies caused by weather conditions.

2. Automatic real-time alarm threshold adjustment with wind rejection.

3. 500 sensitivity levels are easily adjusted to adapt the sensor sensitivity to the fence condition.

Innovative Solutions for Every Need

Purpose built perimeter detection for the industries where a breach costs the most.
Explore how RBtec fits yours:

RBtec industry water treatment aerial view 4 3

Utilitas Air

Water systems answer to AWIA risk assessments while running fences around plants, reservoirs and dozens of unmanned pump stations. RBtec gives each site type a standard zoned detection layer that reports back over the telemetry the system already runs.

Utilitas Air

Aerial view of a high-voltage electrical substation with transmission lines and a fenced compound

Substations and Electrical Utilities

Substations are unmanned, spread across whole service territories, and increasingly targeted — from copper theft to sabotage. RBtec turns the station fence into a zoned detection layer reporting through existing SCADA, documented for CIP-014.

Substations and Electrical Utilities

Solar Farm

Copper theft crews can strip a solar site in one night, and insurers know it. RBtec turns kilometers of PV fence into zoned detection that catches the cut before the inverters are reached, with sensing that scales from one site to a whole portfolio.

Solar Farm

Aerial view of a self-storage facility with rows of storage units and a fenced perimeter

Self-Storage Facilities

Storage facility break-ins happen after hours, through or over the fence, while cameras record quietly. RBtec IRONCLAD turns the perimeter into an alarm zone on the burglar panel you already have, so response starts while the thief is still at the fence.

Self-Storage Facilities

Aerial view of a sea port with docked ships and container yards

Sea Ports & Terminals

Ports run long landside fences and a waterside that no fence can cover, under ISPS and MTSA obligations. RBtec covers both: zoned detection on the fence line and Marinet underwater detection where the intruder arrives by water.

Sea Ports & Terminals

Aerial view of a walled private country estate with a gated driveway and surrounding farmland

Private Estates & Residences

Large private properties have long, irregular boundaries — walls, hedges, gates and open ground — and no security team on site. RBtec detects an intruder at the boundary and reports where, before they reach the house.

Private Estates & Residences

Oil, Gas & Petrochemical

Refineries, terminals and tank farms run some of the longest fences in industry, often around hazardous areas where powered electronics cannot go. RBtec covers the distance with passive fiber sensing and keeps every active component safely outside the zone.

Oil, Gas & Petrochemical

Aerial view of a monitored border corridor with a patrol road

Keamanan Militer & Perbatasan

On a border or a base, the adversary plans around what they can see. RBtec buried fiber gives them nothing to plan against, and fence sensing, ground sensors and protected distribution close the layers above and behind it.

Keamanan Militer & Perbatasan

Aerial view of a distribution and fulfillment centre with a fenced trailer yard

Logistics & Distribution Centers

Cargo theft breaks records every year, and it starts at the fence around the trailer yard. RBtec turns that fence into a zoned alarm layer that satisfies TAPA FSR auditors and feeds the cameras your guards already watch.

Logistics & Distribution Centers

RBtec industry government campus aerial view 4 3

Government & Classified Networks

A classified network is only as secure as the cable runs between secure rooms. RBtec alarmed carrier PDS protects SIPRNet and other classified circuits between SCIFs and connected buildings, in line with CNSSI 7003 and without concrete encasement.

Government & Classified Networks

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Product Features

Ideal for installation on metal fences, including palisade, ornamental, wrought iron, and aluminum fences.
Plug-and-play kits, ready for fast installation at an affordable cost.
No conduit needed. The sensor cable attaches directly to the fence.
No training or special tools required. Includes a clear installation manual.
No certification required. Standard security technicians can install it.
Maintenance-free operation. Sensor cable includes a 2-year warranty.
500 sensitivity levels to match different environments, weather, and fence types.
Dry-contact relay outputs (NO/NC) connect to any alarm panel or DVR.