Farm crime in Somerset continues to rise, with the theft of machinery, tools, fuel, and livestock costing the agricultural sector millions annually. For Somerset farmers, protecting outbuildings, barns, machinery stores, and fuel tanks presents a significant challenge — these structures are often spread across large areas, lack mains power, and are difficult to cable with traditional wired alarm systems. Long-range wireless alarm technology now provides a practical and cost-effective solution.
The Scale of Farm Crime in Somerset
According to NFU Mutual's Rural Crime Report, the South West consistently ranks among the worst-affected regions for agricultural theft. Common targets on Somerset farms include:
- Quad bikes and ATVs — Highly portable and easily resold
- GPS equipment — Precision farming technology is valuable and often left in tractors overnight
- Power tools and hand tools — Workshops and tool stores are frequent targets
- Diesel and red diesel — Bulk fuel tanks in remote locations are vulnerable
- Livestock — Sheep rustling remains a persistent problem across Somerset
- Metal and cable — Copper cable, lead flashing, and scrap metal attract opportunist thieves
Why Traditional Alarms Fail on Farms
Conventional wired intruder alarm systems are designed for contained commercial or residential buildings. They fail on agricultural premises for several reasons:
- Cable distances — Running alarm cable from a farmhouse to a barn 500 metres away is impractical and expensive, requiring trenching across yards and fields
- Multiple structures — A typical Somerset farm may have a farmhouse, multiple barns, a machinery store, a workshop, a fuel store, and livestock buildings — all requiring protection
- No mains power — Many outbuildings have no electrical supply, making wired detectors impossible without significant electrical infrastructure investment
- Environmental conditions — Dust, moisture, temperature extremes, and animal activity in agricultural buildings cause frequent false alarms with standard detectors
Long-Range Wireless Alarm Technology
Modern wireless alarm systems designed for agricultural and rural applications use long-range radio technology to connect detectors in remote outbuildings to a central control panel in the farmhouse or farm office. Key capabilities include:
- Range up to 1.6 kilometres — Line-of-sight communication distances allow detectors in distant barns and field shelters to report to the main panel
- Encrypted communication — Military-grade encryption prevents jamming and signal interception
- Supervised connections — The panel continuously monitors communication with every device, generating a fault alert if any device loses contact
- Battery life up to 5 years — Low-power wireless detectors operate on long-life lithium batteries, reducing maintenance visits
- Solar-powered options — Perimeter detectors and external PIRs can be powered by integrated solar panels for indefinite operation
Livestock-Friendly PIR Settings
Protecting buildings that house or are adjacent to livestock requires careful detector selection and configuration. Standard PIR detectors will trigger on the body heat of cattle, sheep, and horses. Solutions include:
- Pet-immune PIR detectors — Designed to ignore movement below a certain mass threshold, though larger livestock may still trigger standard pet-immune units
- Curtain-pattern PIRs — Focused detection patterns that protect specific entry points (doors, windows) rather than the entire building volume, avoiding activation from livestock within the building
- Magnetic contacts on doors and gates — Simple and reliable detection of unauthorised entry without any sensitivity to animal movement
- Vibration detectors — Mounted on walls, doors, or roller shutters to detect forced entry attempts rather than movement within the building
NFU Mutual Insurance Requirements
NFU Mutual, the predominant agricultural insurer in Somerset, may require specific security measures as a condition of farm insurance policies. Requirements typically include:
- Professional installation — Systems must be installed by a British Standards-compliant contractor
- Annual maintenance — A planned maintenance contract with an approved contractor is usually required
- Monitoring — For higher-risk properties, professional monitoring by a BS 5979 Category II alarm receiving centre may be stipulated
- Police URN — Monitored systems should be registered with the police to obtain a Unique Reference Number for response
Integrated Farm Security
For comprehensive farm protection, wireless intruder alarms can be integrated with complementary security technologies:
- CCTV with AI analytics — Cameras with vehicle and person detection provide visual verification and evidential recording
- Driveway alerts — Vehicle detection sensors on access tracks provide early warning of approaching vehicles
- Gate and barrier automation — Controlled access to the farmyard reduces opportunist access
- Mobile app notifications — Real-time alerts to the farmer's phone when any detector activates
Affinity Fire & Security Farm Security Services
We design and installs wireless alarm systems for farms and agricultural premises across Somerset. We understand the practical realities of farm security — the need for reliable detection that does not generate false alarms from livestock, weather, or environmental conditions. Get in touch with our team for a farm security survey and quotation.
Talk to a Local Engineer
If you would like honest advice, a clear written quote, or help with compliance paperwork,get in touch with our team. We are a small, experienced South West team, and we look after every customer properly — no pushy sales, no hidden extras, and documentation you can rely on.



