Know exactly how much grass you have.
GrasslandTools is home base. Walk the farm with a Grasshopper and the wedge, the grazing plan and the paddock map draw themselves. Your WeighRite sessions and every e-gate report in too.
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Drag the levers below. It's a real wedge, not a picture of one.
Grass measured, every day
Updated within the hour Counted across every farm on GrasslandTools.
- farms walked in the last 12 months
- 1,795
- hectares of grazing ground
- 65,722
- on the farms walking this year
- grass walks this year
- 24,651
- plate readings
- 81 million
- each one a drop of the Grasshopper
- walks in the last 7 days
- 889
- paddock covers
- 2,704,769
- recorded, all time
- paddocks mapped
- 38,912
- grazings recorded
- 241,017
- kg DM/ha average cover
- 1,107
- across paddocks walked this week
- countries
- 17
- animals weighed
- 19,597
- weighings
- 57,264
- tonnes of liveweight weighed
- 16,788
- gates in the field
- 371
- openings in the last 30 days
- 5,066
- openings, all time
- 61,349
Every paddock, mapped and measured
Grasshopper measures compressed sward height to the millimetre as you walk, and you decide the moment each drop is taken. By the time you're back at the yard the wedge is drawn, the map is shaded, and the grazing plan knows which paddock is next.
| Paddock | Area (ha) | Cover (kg/ha) | Growth (kg/ha/day) | Height (mm) | Days grazing |
|---|---|---|---|---|---|
| Fort | 0.2 | 3460 | 52 | 166 | 0.3 |
| Long Field | 3.6 | 3170 | 88 | 147 | 3.6 |
| 6 | 0.7 | 2970 | 64 | 134 | 0.6 |
| 2 | 1.9 | 2780 | 79 | 122 | 1.4 |
| 4 | 2.4 | 2640 | 41 | 113 | 1.6 |
| 10 | 1.5 | 2550 | 93 | 107 | 0.9 |
| 15 | 1.4 | 2420 | 58 | 99 | 0.8 |
| 14 | 0.6 | 2330 | 71 | 93 | 0.3 |
| 9 | 2.4 | 2220 | 47 | 86 | 1.0 |
| 3 | 1.1 | 2110 | 84 | 79 | 0.4 |
| 11 | 2.8 | 1990 | 62 | 71 | 0.8 |
| 13 | 0.9 | 1890 | 75 | 65 | 0.2 |
| 7 | 0.7 | 1850 | 68 | 62 | 0.1 |
| 8 | 1.2 | 1780 | 55 | 58 | 0.2 |
| 1 | 1.9 | 1700 | 90 | 53 | 0.2 |
| 5 | 1.0 | 1630 | 44 | 48 | 0.1 |
| 12 | 2.7 | 1520 | 73 | 41 | 0.0 |
Grasshopper is the most accurate grass cover measurement system available on the market today. Developed and validated with the Moorepark Grassland Research Centre over three years.
Covers become a wedge the moment the walk is saved: demand line, average cover, surplus and deficit, all recalculated as you go.
GPS paddock identification and colourised cover maps. Draw the farm once in the map editor, then split, merge and reseed as it changes, with the history kept.
The 20 measurements a year a derogation asks for, recorded and dated with the report available straight from your dashboard when you need it.
Smart animal weighing · works with your own bars · live results on your phoneWeights that tell you something
WeighRite turns your phone into the weigh-head display and works with the bars and crush you already own. Sessions arrive here as progression, daily gain and cohort breakdowns you can act on.
EID input identifies each animal as it steps on. Herd data comes down from ICBF and results go back up in the background. Nothing to re-type or enter by hand.
Sort automatically on weight, date of birth, breed, enterprise or a target date, and record body condition and docility alongside the weight.
Follow one animal's growth between measures or compare cohorts, see the best performers and who is falling behind.
Solar gate release · easy to install and move · activate from anywhereThe gate opens without you
e-gate is a solar-powered remote gate release that attaches to your fence post. No wiring, no new gate. Trigger it from your phone, set it on a timer, or arm it to let the herd out when the rain starts. A dairy farmer could save 200-300 labour hours a year bringing the cows into the parlour.
Activity
Firmware
Status
Updated just now
Openings today
One tap on the app opens the gap, wherever you are. The cows walk in at their own pace, which is easier on their feet than being pushed.
Set a three-hour rotation for spring grazing, schedule an opening like an alarm, or connect a suitable weather station and let the gate open itself when the rain starts.
Latch, fence, battery, signal, position and alarms all report in regularly, so a low battery or a dead fence reaches you before it causes a problem.
The paperwork, handled
The parts of farm management nobody enjoys: the maps for the inspector, the fertiliser record, the annual summary. All generated from data you already entered.
PDF paddock maps with your own branding, you can print these to hand out, or get a whiteboard made for the parlour.
Plan the rotation ahead, with entry and exit covers and days-grazing per paddock.
Season summaries and growth reports as PDF or Excel, ready to send on.
Printable proof of 20 required grass measurements for derogation compliance, produced from your own paddock and herd data.
Log spreading by paddock and keep the year's nutrient record in one place.
Close paddocks, plan cuts and track yields without breaking the grazing figures.
Store soil samples against the paddock they came from, so the map shows the whole picture.
The Grasshopper and WeighRite apps work on a phone, in the rain, out of signal, and sync when you get back to it.
Give an advisor or contractor access to a farm without handing over your login.
Three steps, once a week
- 1
Walk the farm
Take the Grasshopper out to measure your grazing platform. GPS knows which paddock you're standing in. Drop the plate every few steps as you go.
- 2
Let it do the sums
Drops become a cover, a wedge, an average, a growth rate and a grazing planner, the moment the walk is saved.
- 3
Act on it
Move the herd, allocate a strip fence, close a paddock for silage, then let the figures go on to PastureBase, AgriNet or whoever needs them.
It plays nicely with the rest of your records
Measure once and file it everywhere. Covers and weights recorded here go out to the national and commercial databases you already report to.
Covers go straight to PastureBase Ireland.
Grass measurements upload to your AgriNet account.
WeighRite pulls your herd from ICBF and posts results back.
Data sharing with ONPH for French herds.
See how your grass walk compares
Public leaderboards rank farms, regions and counties on your grass walks, anonymously unless you choose otherwise. Free to browse, no account needed. Prizes and rewards are there for the best performers.
Regional leaderboards across 17 countries.
Built for whoever walks the farm
Farmers
One farm, measured properly. From the weekly walk to the year-end report, and every device on the place, in a single account.
Advisors
Every client farm side by side, with the covers, wedges and reports you need before the visit, not after it.
Contractors
Measure across the farms you cover and hand each one a clean set of figures they can use.
What it costs
GrasslandTools is a subscription. The hardware is a one-off purchase from True North Technologies, who build them.
Everything in GrasslandTools for a single holding: covers, wedges, maps, grazing plans, weighing and reports.
The same tools across a lot more ground. For contractors and advisors walking a book of farms rather than one.
Need more than 50? Each pack adds another 5 farms to either plan.
Prices include VAT · cancel any time
The hardware
GrasslandTools is the software. The hardware is designed and built by True North Technologies in Shannon, Co. Clare. Buy them direct, with warranty and telephone support.

Grass measuring plate meter. Compressed sward height to ±25 kg DM/ha.
Buy now
Bluetooth connected weigh-head for the bars you already have.
Buy now
Remote gate release. Straps to the post, open from your phone wherever you are.
Buy nowQuestions? Ask us
Whether it's how our gear can help you on the farm, help moving your records across from somewhere else, or a quote for group discount, send a note and someone who knows the system will come back to you.
Your next farm walk could be your best yet
Create an account, add a farm, and record a cover. The wedge draws itself from there.

