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HerdHalo

The backbone of Britain

For the farms that feed Britain.

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No SIM card required

Smart tags for the animals you cannot afford to lose sight of.

HerdHalo helps British farmers monitor calving, locate livestock and catch open gates across fields, sheds and yards. Every device runs on one farm-owned network — with no SIM, cellular or satellite connection in any tag, and no per-device subscription — using reusable tags built for the realities of working land.

Register interestSee how it works
SIM cards in your tags
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SIM cards in your tags

farm-owned network
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farm-owned network

products, one farm view
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products, one farm view

One farm view

No SIM required

HerdHalo app showing live farm alerts for Hillcrest Farm
HerdHalo Calve tag
Calve
HerdHalo Locate tag
Locate

No-SIM tags · one farm gateway · one farm system

  • No SIM card in every tag
  • No per-animal mobile contract
  • One farm network
  • Reusable tags
Designed in Britain

Hardware for the farms that feed Britain.

HerdHalo is designed and built in Britain, for British conditions — rugged, no-SIM hardware built around patchy signal, thick sheds and long days on the land.

  • 01

    Designed for British conditions

    Wet fields, thick stone sheds, hedgerows and hills — the realities our tags and gateways are tuned for.

  • 02

    Farm-owned connectivity

    Your network, your data, no mobile contract per animal. The farm owns the link, not a telecoms provider.

  • 03

    Built to roll out at your pace

    Start with your highest-value animals and expand across the herd when it suits the season and the budget.

01The reality on the ground

Farms do not stop. Phone signal often does.

HerdHalo is built around the realities of working land — not the assumption that every field has a mobile mast nearby.

  • 01

    Patchy mobile coverage

    Mobile signal is unreliable across many farms. HerdHalo is designed around farm-level connectivity instead of per-animal SIM cards.

  • 02

    Missed calving events

    Farmers cannot be everywhere at once. HerdHalo Calve helps surface the animals that may need attention.

  • 03

    Lost time searching fields

    HerdHalo Locate helps reduce wasted time locating livestock across fields, lanes, sheds and remote grazing areas.

  • 04

    Too many subscriptions

    Avoid paying for a mobile contract per tag. Keep the hardware simple and the network farm-owned.

02The HerdHalo family

Three products. One farm network.

Run them on their own or together — they all report into the same farm-owned network and the same simple app. No SIM card in any of them.

HerdHalo Calve — Calving & monitoring tag
Calving & monitoring tag

HerdHalo Calve

A no-SIM calving-alert and activity-monitoring tag for cattle.

Designed to help farmers identify cows that may need attention during late pregnancy and calving windows.

  • Activity and movement pattern monitoring
  • Farmer alerts for attention-worthy changes
  • Works without a SIM card in the tag
  • Designed for sheds, yards and fields
  • Simple mobile notifications
  • Reusable, built for mud, rain and daily farm use
Learn about CalveNo SIM card required
HerdHalo Locate — Livestock & asset location tag
Livestock & asset location tag

HerdHalo Locate

A rugged no-SIM location tag for livestock and farm assets.

Designed to help farmers find animals faster and keep visibility across the farm.

  • Livestock location visibility
  • Field, shed and yard tracking
  • Geofence-style alerts
  • Low-power long-range farm network
  • No mobile contract per tag
  • Reusable — cattle, sheep and valuable farm assets
Learn about LocateNo SIM card required
HerdHalo Gate — Gate-open alert sensor
Gate-open alert sensor

HerdHalo Gate

A no-SIM gate-open alert that connects to your farm network.

Designed to help farmers know when a gate is opened or left open — before stock get where they shouldn't.

  • Alerts when a gate opens or is left open
  • No SIM card in the sensor
  • Connects to the HerdHalo farm network
  • Simple mobile notifications
  • Weatherproof, for field gates and yard gates
  • Helps reduce strayed stock and break-outs
Learn about GateNo SIM card required
03How it works

Simple farm setup. No SIM in every tag.

Tags talk to a farm gateway, not the mobile network — so connectivity stays farm-owned and there is no contract per animal.

  1. 01

    Tag the animal

    Attach HerdHalo Calve or HerdHalo Locate to selected livestock.

  2. 02

    Connect the farm

    A farm gateway receives tag signals across key areas such as sheds, yards and grazing land.

  3. 03

    Get useful alerts

    Farmers receive clear notifications for calving attention, location changes or livestock movement.

  4. 04

    Act faster

    Know which animal needs attention and where to start looking.

The signal path

The exact communication range depends on terrain, buildings, gateway placement and farm layout.

04For farmers

Built for the jobs farmers actually need done.

Less time chasing uncertainty, more time on the work that matters.

  • 01Find your animals faster
  • 02Reduce missed calving checks
  • 03Avoid SIM contracts per animal
  • 04Support welfare and quicker response
  • 05Improve visibility across sheds and fields
  • 06Spend less time chasing uncertainty
The HerdHalo app for Hillcrest Farm — a live farm map with livestock and gate markers
05The app

Alerts that tell you what matters.

A short, scannable list of what needs you — not a dashboard full of noise.

  • Attention-first alertsThe animals that may need you are surfaced at the top — calving activity, a strayed cow, a moved trailer.
  • Last-seen by gatewayEach alert shows where it was last picked up, so you know which gate to head for first.
  • A simple herd listStatus and tag battery at a glance. No dashboards full of noise to wade through.

Clear, farmer-friendly notifications — no telecoms contract per tag.

06British farm-ready

Your own private farm mesh network.

A network you own, on your land — one private farm mesh keeping every animal, gate and perimeter connected across vast holdings, with no SIM in any tag.

Aerial view of a British farm with HerdHalo devices connected across the fields
Network hub

Farm Gateway

The brain of your farm network.

Farm Gateway
  • Private mesh coverageOne farm-owned network, reliable across every field.
  • Uses your existing internetConnects over the farm's wired or wireless internet connection.
  • Solar backupDesigned to stay up through power cuts.
  • No SIM in the tagsNo cellular or satellite contract for any tag or sensor.
  • Your data stays yoursHosted strictly in the UK.

Device 1 of 5

Ranges and battery figures are design targets for an in-development product and may change before launch.

Founding Farms

Become a HerdHalo founding farm.

HerdHalo is in development, and we are signing up a small group of founding farms to help shape the product and roadmap. Register your intent below — selected farms receive 12 months' free access to HerdHalo Livestock Management Software when we go live.

  • 12 months' free software for selected farms
  • Direct input into the product roadmap
  • Non-binding — we contact you to arrange details

This is a non-binding expression of intent. We will only use your details to run the Founding Farms programme and keep you updated about HerdHalo.

Happy to help with (optional)

This is a non-binding Letter of Intent. Care3 Labs Ltd (trading as HerdHalo) will select appropriate founding farms and contact you in due course to make arrangements. Selected farms receive 12 months' free access to HerdHalo Livestock Management Software. We handle your details in line with our Privacy Policy.

08FAQ

Straight answers, no jargon.

The questions farmers ask us most about HerdHalo.

  • No. HerdHalo is designed around no-SIM tags and farm-level connectivity.

Guides

The technology, explained simply.

Guides to calving alerts, livestock tracking and farm software — how each works, and where a no-SIM, farm-owned network fits a British farm.

All guides

Know which animal needs you. Know where to look.

Register interest

Preparing pilot deployments with selected British farms.