Trailer weighing for farms
Know every load before it leaves the field.
One pressure sensor on your tractor and an app on your phone. Hitch up any calibrated trailer, see the weight live as you fill, record every load, and watch yields and store levels build across the farm.
Free on iPhone. Android is coming soon.
Built for every crop you haul
Grain
Oilseeds
Pulses
Root crops
Silage
Bulk materialsHow it works
Set up once, then weigh every load.
Fit the sensor
The sealed pressure sensor tees into the tractor's rear hydraulic outlet and talks to your phone over Bluetooth. One sensor weighs every trailer that tractor pulls.
Calibrate the trailer
Record the trailer empty, then with one load of known weight. The app works out the rest. Re-tare in seconds whenever you need to.
Weigh and record
Watch the tonnes climb as you fill, with a capacity gauge to stop overloading. Tap once to record the load. No signal? It saves on the phone and syncs later.
Free and Plus
Start free. Bring the whole farm on with Plus.
The free app weighs and logs your loads. AgriMasso Plus turns those loads into a harvest record for the whole team.
AgriMasso
Free app
Live weight and capacity gaugeTonnes and kilograms on screen as you fill.
One sensor, every trailerThe sensor lives on the tractor. Calibrate each trailer once and share it to other phones by QR code.- Every load loggedA running history with daily totals, online or off.
AgriMasso PlusFarm
One subscription for the farm, with everyone on it
- Yield by field as you cutRunning tonnes and t/ha or t/ac for each field and crop, with average moisture.
Store and stock levelsSee what's in every store, section and staging area against its capacity.
Quality with every loadMoisture, variety, protein, Hagberg, specific weight, oil, screenings and dry matter.
Your team on one accountInvite drivers with a code. Get a notification as each load lands, with weight, crop and field.- Reports ready to sendPDF and CSV by field, crop and date for your agronomist, buyer or accounts.
Specifications
What's in the kit.
A stainless, fully sealed pressure sensor built for mobile hydraulics, paired with the AgriMasso app.
| System accuracy in use | Weighbridge testing underway |
|---|---|
| Sensor accuracy | ±0.25% of full scale at 25 °C |
| Pressure range | 0–200 bar, sealed gauge |
| Protection | IP69K, stainless steel, fully hermetic |
| Operating temperature | −40 to +100 °C |
| Port | G1/4A |
| Cable | 2 m, M12 5-pin, right-angle at the sensor |
| Power | 12 V from the tractor |
| Connection to phone | Bluetooth Low Energy, auto-reconnect |
| Fitting | One sensor per tractor, teed into the rear hydraulic outlet |
| Trailers | Any trailer with a linear pressure response to load |
| App | iPhone now, Android coming soon |
| Units | Tonnes or kg, hectares or acres |
| Data | Works offline, syncs to the cloud, CSV and PDF export with Plus |
Questions
Before you fit one.
Will it work on my trailer?
If the trailer's pressure rises in a straight line as it's loaded, yes. Most hydraulic tipping trailers behave this way. Calibration with one known load confirms it.
Do I need a sensor on every trailer?
No. The sensor fits on the tractor, teed into the rear hydraulic outlet, so one sensor weighs every trailer that tractor pulls. You calibrate each trailer once in the app and pick it when you hitch up.
Does it need phone signal?
No. Live weight comes straight from the sensor over Bluetooth, and loads are saved on the phone. They sync to your account when you're back in range.
How many trailers can I use?
As many as you like. Each trailer keeps its own calibration, and you can share a calibrated trailer to another phone by scanning a QR code.
What's the difference between free and Plus?
Free weighs and logs loads for you. Plus is for the farm: shared loads across your team, fields, stores, quality data, yields, reports and load notifications.
Can I use it without an account?
Yes. You can start without signing up and create an account later if you want your loads backed up or shared.
Privacy policy
What AgriMasso stores, and why.
Your account
If you create an account, we store your name and email address so you can sign in and so your farm team can see who recorded each load. You can also use the app without an account.
Your loads and farm data
Trailers, loads and, with Plus, fields, stores, products and quality data are stored in Google Firebase in the EU so they sync across your devices and your farm. We don't sell this data or share it with advertisers.
Notifications
If you allow notifications, we store a device token so the app can tell you when a load is recorded. You can mute notifications in the app at any time.
Bluetooth and location
Bluetooth is used only to connect to the AgriMasso sensor. Android asks for location permission because it's required to scan for Bluetooth devices. AgriMasso does not record your location.
Deleting your data
To delete your account and data, email us at the address below and we'll remove it.
Contact
Questions about your data go to the same address. We'll reply as soon as we can.
Last updated September 2026.
Weigh your next load with AgriMasso.
Download the app, then get in touch to order a sensor.