Battery-powered sensors on fence lines, gates and outbuildings raise an alert the moment a boundary is disturbed — across miles of rural boundary with no mains power, no trenching and no cabling at the fence.
IoT Technologies builds perimeter monitoring systems for large rural estates, farms and fixed sites: fence-line movement sensing on the runs, PIR motion at gates and access tracks, door-state sensing on outbuildings, all reporting over the ZARC radio network to a live dashboard — with an alert API that can pass a verified alert straight to a drone operator's flight system.
Estate security monitoring
Vibration and movement sensing on fence runs turns a cut or climbed fence into an immediate, located alert.
PIR motion alerting at gates, chokepoints and access tracks; dry-contact and door-state sensing on outbuildings and stores.
Every install point is logged with its what3words address and coordinates, so responders and flight systems share one location.
For high-risk zones, the platform's outbound API can pass an alert's pre-recorded location to a drone operator's flight system for visual verification.
A perimeter intrusion detection system, or PIDS, is a network of sensors along a boundary that detects unauthorised access the moment it starts and alerts the people responsible for responding. It replaces the assumption that someone will happen to notice.
A large rural estate or farm can have miles of boundary and no eyes on any of it. The standard answer is manned patrols on a rota, and the economics are poor in both directions: the patrol is expensive to run, and it is slow to detect anything, because a fence is only checked when a vehicle passes it. A cut fence, a forced gate, missing plant or missing livestock are typically found hours after the event, when the trail is cold and the insurance claim is the only action left.
The cost of that gap is measurable. NFU Mutual's 2026 Rural Crime Report estimates that rural crime cost the UK £41.5 million in 2025, with livestock theft up nearly 30% to an estimated £4.5 million, agricultural vehicle theft up 18% to £8.3 million, and quad and ATV theft up 31% to £3.5 million. The same report describes livestock theft as highly organised. These are claims-based estimates, and they describe the pattern estate managers already recognise: unauthorised access and theft concentrated where detection is slowest.
Our model puts fixed sensors at the points that matter rather than powered cable along the whole boundary. Fence-line vibration and movement sensing covers the runs; PIR motion alerting covers gates, chokepoints and access tracks; dry-contact and door-state sensing covers outbuildings, stores and gates. Every install point is logged at commissioning with its what3words address alongside its coordinates, so an alert names a three-metre square a responder can find in the dark. Readings travel one way, over the ZARC radio network, to a live dashboard: the alert arrives the moment a fence moves.
Conventional wired PIDS runs powered sensor cable along the fence with controllers roughly every kilometre. That is a viable design for a compound; it is punishing economics for miles of unpowered rural boundary. Battery sensors reporting on the licence-free 433 MHz and 868 MHz bands need no trenching, no mains supply and no comms cabling at the fence, which is what makes fence monitoring practical at estate scale.
The commercial case is not a replacement for guarding but a re-pricing of it. Routine patrols of ground where nothing has happened become targeted response to a verified alert at a named three-metre square. That means fewer guard hours spent on low-value circuits, faster detection when something does happen, and a full audit trail of every event, alert and acknowledgement, timestamped, for insurers, incident review and the man guarding budget conversation.
This page describes monitoring and operational security support. It does not guarantee prevention of intrusion or theft, and it does not replace physical security assessment, certified alarm systems, guarding, policing or statutory obligations. Its value is earlier detection, targeted response and a dependable record of events across boundaries that are impractical to watch any other way.
Fence monitoring
Fence-line vibration and movement sensors fix to posts and mesh along the runs and report over licence-free sub-GHz radio. A run that has never had power and never will can still raise an alert within moments of being cut, climbed or pulled, because nothing at the fence needs a supply — the sensing is battery-powered with years of field life.
Access points
Most unauthorised access follows the easy routes: gates, yard entrances and the tracks a vehicle needs. PIR motion alerting covers those approaches, and dry-contact and door-state sensing brings gates, stores and outbuildings onto the same dashboard — compound access monitoring and building state in one picture of the estate.
Located alerts
A fixed-site intrusion alert is only useful if the responder knows exactly where to go. Because every install point is logged at commissioning with its what3words address and coordinates, the alert carries its own location: human-readable for the person driving to it, machine-readable for a flight system. Nobody interprets a grid reference at two in the morning.
Drone response
When a sensor raises an alert, the platform already knows precisely where that sensor is — the location was recorded at commissioning, not worked out during an incident. For high-risk zones, the platform's outbound API passes that location to a drone operator's flight system, so a drone-in-a-box launches to the alert location for visual verification within minutes, before anyone is dispatched by road.
The division of responsibility is plain. IoT Technologies supplies the sensors, the network and the alert API. The drone, the docking station and all CAA authorisations and flight operations belong to the site operator or their drone contractor, and launch automation sits under the operator's CAA authorisations. The radio link is strictly one-way telemetry — nothing is commanded over the radio; dispatch happens platform-side over the internet.
The drone launches to a fixed, pre-recorded location for verification. The tier is optional: most boundaries need only the alerts, and drone verification is for high-value zones where minutes matter.
Delivery assurance
A boundary sensor spends its life in the worst radio positions an estate has: long unpowered fence runs, remote field corners, no mains, no wifi. The tags are engineered for exactly that — events arrive from those positions over licence-free sub-GHz radio, with years of life on a battery. The one powered element is the gateway, which runs from mains, a DC feed or solar where no supply exists.
Deployment approach
A perimeter deployment starts with the map: where the runs are, where access is possible, which zones hold value and who responds when an alert is raised.
We survey the RF behaviour of the site, place gateways for coverage, fix sensors at the points that matter, record every install point's what3words address and coordinates, prove alert delivery from the furthest run, and then extend the same model across the rest of the estate.
Walk the boundary: runs, gates, chokepoints, access tracks, high-value zones, and the current patrol and response arrangement.
Boundary map
Assess RF coverage across the estate, place gateways, and confirm range from the furthest fence runs before anything is fixed.
RF survey
Fix sensors, log every install point with its what3words address and coordinates, and set alert thresholds and routing.
Location log
Raise controlled events on the fence line, gates and buildings to confirm alert delivery, location accuracy and response workflow.
Alert proof
Roll the proven pattern across the remaining boundary, add zones, and connect the alert API where drone verification is wanted.
Estate rollout
Bring the boundary map, the current patrol arrangement and the zones you most need eyes on. We will scope a deployment around the incidents you actually need to detect.
Scope a perimeter deploymentApplications
Miles of boundary, scattered outbuildings and no resident security operation — the setting wireless perimeter monitoring was designed for.
Door-state and PIR alerting on barns, feed stores and handling areas, where theft is organised and discovery is usually next morning.
Alerting on the yards and compounds holding vehicles, quads and attachments — the categories rising fastest in the claims data.
Fixed sites that stand unoccupied outside working hours, where a gate or fence event should reach a keyholder immediately.
Estate security monitoring across multiple holdings on one dashboard, with alerts routed to whoever responds for each site.
Zones where minutes matter, with the alert API connected to a drone operator's flight system for visual verification.
FAQ
A perimeter intrusion detection system is a set of sensors placed along a site boundary — on fence lines, gates and buildings — that detects unauthorised access as it starts and raises an immediate alert. Wireless PIDS uses battery-powered sensors reporting over licence-free radio, which suits long rural boundaries where powered, cabled fence systems are impractical to install and maintain.
Yes, through the platform's outbound API. Every sensor's location is recorded at commissioning as a what3words address and coordinates, so when an alert is raised the platform can pass that fixed, pre-recorded location to a drone operator's flight system, and a drone-in-a-box launches to it for visual verification within minutes. The drone, the docking station and all CAA authorisations and flight operations belong to the site operator or their drone contractor.
Yes. The sensor tags are battery-powered, with years of field life, and report over licence-free 433 MHz and 868 MHz radio, so a fence run needs no trenching, no mains supply and no comms cabling. The one powered element is the gateway, which runs from mains, a DC feed or solar where no supply exists.
No — it changes what guarding is for. Routine patrol hours spent checking ground where nothing has happened become targeted, evidence-led response to a verified alert at a named location. Most operators keep a response capability and reduce the routine rota; the system is complementary to guarding, not a replacement for it.
Every install point is logged at commissioning with its what3words address alongside its coordinates. The what3words address gives responders a human-readable three-metre square they can navigate to; the coordinates give flight systems and mapping tools the same point in machine-readable form.
Tell us about the estate: the length of boundary, the zones that hold value, the current patrol arrangement and whether drone verification is on the table. We will scope a wireless perimeter intrusion detection deployment around it.
Direct contact
Location
Venator House, 15-17 St Stephen's Road, Bournemouth
Dorset BH2 6LA · VAT GB 409644484
Tell us about the boundary, gates, outbuildings, high-value zones and response arrangement you need alerts for.