Grain Cart Scale
Libra Cart™ – Wireless Grain Cart Scale with Automatic Unload Detection
Accurate harvest weighing shouldn’t be complicated. The Libra Cart wireless grain cart scale from Central City Scale connects directly to your grain cart’s existing load cells and sends precise weight data via Bluetooth® straight to the free Libra Harvest app on your smartphone or tablet.
No bulky traditional grain cart scale indicators. No cab clutter. No complicated wiring. Just reliable, real-time weights in the palm of your hand.
Hands-Free Automatic Unload Tracking
Libra Cart features smart automatic unload detection — it knows exactly when you’re unloading without needing PTO engagement, extra sensors, buttons, or manual tickets. Every load is automatically recorded with:
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Accurate weight
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GPS location
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Timestamp
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Field and truck details
This gives you clean, trustworthy harvest data for yield tracking, inventory management, crop insurance reports, and better decision-making — all without stopping to write notes or fiddle with outdated equipment.
Why Farmers Choose Libra Cart
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Wireless & Mobile — Use the phone or tablet you already carry. No extra monitors or cab-mounted displays needed.
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Button-Free Operation — Automatic detection means true hands-free weighing during harvest.
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Real-Time Data — See live weights, totals, and unload events instantly in the field.
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Easy Installation — Works with industry-standard load cells on virtually any grain cart.
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Better Harvest Insights — Track yields by field, monitor truck loads, and maintain accurate records for landlords, lenders, or agronomists.
Whether you’re running a large grain operation, custom harvesting, or managing multiple bins and trucks, Libra Cart delivers the simplicity and accuracy modern farmers need in a wireless grain cart scale system.
Ready to upgrade your harvest weighing? Download the Libra Harvest app today and experience wireless, automatic grain cart weighing that saves time and improves accuracy from the first load to the last.
Contact Central City Scale for compatibility questions, load cell options, or to see Libra Cart in action.
Libra Harvest App
Libra Cart Hardware
Top-Rated Grain Cart Scale by Farmers: “It Just Works.”
Libra Cart™ – Best Wireless Grain Cart Scale & App-Based Harvest Weighing System
Farmers searching for the best grain cart scale consistently rank Libra Cart among the top-rated wireless grain cart scales and harvest management systems on the market. With rock-solid reliability, dead-simple setup, and hands-free accuracy of ±0.5–1% in real-world conditions, Libra Cart delivers the kind of performance that shows up in cleaner records, better yield data, and higher efficiency during harvest.
No cab clutter. No buttons. No manual tickets. Just accurate, automatic weighing you can trust.
What Farmers Are Saying About Libra Cart
Real users on AgTalk, The Combine Forum, and across the industry consistently praise Libra Cart:
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“Deadly accurate... within 1% of actual bushels harvested. Pretty damn impressed.”
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“Love my Libra Cart. I wouldn't want to be without it.”
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“Works awesome... Excellent way to keep records. One of the best buys on the farm.”
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“Super happy – great purchase and will never have a grain cart without Agrimatics installed.”
How the Libra Cart Wireless Grain Cart Scale Works
The Libra Cart hardware connects directly to your grain cart’s existing load cells and sends precise weight data via Bluetooth® to the free Libra Harvest app on your smartphone or tablet.
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Automatic unload detection — Records every unload hands-free with no PTO engagement, extra sensors, or manual input.
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Real-time harvest data — See live weights, totals, and GPS-tracked loads instantly in the field.
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Maximize efficiency — Optimize truck loads, calibrate combine yield monitors accurately, track field-by-field yields, and maintain detailed records for crop insurance, landlords, or management decisions.
Compatible with virtually any grain cart using standard load cells, Libra Cart is the modern, app-based harvest weighing solution trusted by serious grain producers.
Why Farmers Choose Libra Cart as Their Grain Cart Scale
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Eliminate cab clutter and outdated scale indicators
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Achieve hands-free, highly accurate weighing (±0.5–1%)
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Automatically log every load with GPS and timestamps
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Improve yield tracking and inventory management
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Simplify record-keeping for audits and reporting
If you're looking for the best wireless grain cart scale that actually delivers on accuracy, simplicity, and real-world performance, Libra Cart is the clear choice.
Ready to upgrade your harvest weighing? Download the Libra Harvest app today and experience why farmers call it one of the best investments on the farm.
Contact Central City Scale to learn more about Libra Cart compatibility or to get set up before your next harvest.
Powerful Features of the Best App-Based Grain Cart Scale
Libra Cart stands out as one of the best wireless grain cart scales on the market because it combines simple installation, hands-free operation, and powerful app-based tools that actually save time during harvest.
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Plug-and-Play Installation — Mounts in minutes with no hitch wiring required. Works with any grain cart using standard load cells — no expensive replacements needed.
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Use Your Existing Device — Turns your iPhone (iOS 13+) or Android (9+) phone/tablet into a full-featured grain cart scale display. Clears cab clutter and eliminates the need for bulky traditional indicators.
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Automatic Unload Capture — Smart auto-detection records every unload with precise weight, time, date, and GPS location. Automatically assigns loads to the correct field (with Cloud Pro).
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Offline Reliability — Full functionality via Bluetooth® even in remote areas with no cell signal. Data automatically syncs to the cloud when you regain a connection.
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Team Sync & Remote Access — Share live data across multiple devices. Managers can monitor weights and control the system remotely (Pro features).
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Yield Monitor Calibration — Provides a live remote display for easy, accurate combine yield monitor calibration from up to 500 ft away.
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External Display Options — Add the Serial Link module for large LED scoreboards or direct integration with John Deere G4/G5 displays.
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Advanced Data & Reporting — Track truck loads, inventory levels, and field performance in real time. Generate and export professional reports (.xlsx or .pdf). Seamless integrations with John Deere Operations Center, CNH, Trimble, and other major farm management platforms (Pro).
Whether you're looking for the best automatic grain cart scale for a single operation or a full wireless harvest management system for a large crew, Libra Cart delivers proven accuracy, simplicity, and powerful features that farmers actually use every day.
Ready to experience the best app-based grain cart scale? Download the free Libra Harvest app and upgrade your harvest weighing today.
Maximize Harvest Efficiency with the Best Wireless Grain Cart Scale
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Libra Cart delivers powerful tools that help farmers work smarter during harvest. Here’s how the leading app-based grain cart scale improves your operation:
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Prevent Overloads & Stay Road-Legal — Get precise truck-fill tracking so you never overload trucks or risk fines.
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Improve Yield Accuracy — Calibrate your combine yield monitor quickly and accurately for more reliable yield maps.
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Eliminate Manual Errors — Automatic data capture removes guesswork and saves hours on daily recordkeeping.
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Make Better Decisions — Easily compare fields, varieties, and seasons to optimize inputs, fertility, and planting strategies.
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Secure Cloud Backup & Desktop Access — All your harvest data is safely stored in the cloud and editable from any desktop computer (Pro feature).
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Whether you're running a large grain operation or a family farm, Libra Cart gives you the accuracy, speed, and insights you need to maximize efficiency and profitability every harvest.
Subscription Comparison
Libra Harvest Plans: Free vs. Pro – Unlock Full Grain Cart Scale Power
Choose the plan that fits your operation:
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Free Plan — Perfect for smaller farms or anyone wanting a simple, reliable wireless grain cart scale with automatic unload tracking and no extra cost.
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Pro Plan ($99 USD/year per device) — Unlocks multi-device sync, advanced reports, cloud web editing, live remote viewing, and full integrations — ideal for commercial grain operations, multi-truck setups, or farmers who want maximum efficiency and data insights.
Upgrade to Pro and take full control of your harvest data with the best app-based grain cart scale system on the market.