
Precision Agriculture Autopilot
Hold the Line. Plan the Field. Work the Whole Day.
Auto steering for tractors with centimeter-level pass-to-pass accuracy, terrain compensation for uneven ground, and smart end-of-row turning, built for real field conditions, day or night.
See It In Action
A Pro in the Field
PRECISE A Pro is a full-featured auto steering system for tractors: it holds every pass to line, plans end-of-row turns before you arrive, and coordinates implements through one ISOBUS terminal. It's built for complete field automation, where A2 focuses on fast, simple retrofit.
Challenge
Manual steering demands constant attention, as drivers watch the line, correct drift, and judge overlap by eye for hours, often into the evening. Small drifts compound into overlapped or missed strips and driver fatigue, and at each row end the driver must stop, judge the turn, and re-align by hand.
Solution
A Pro combines GNSS/RTK positioning with automated steering to hold the tractor to the planned path within ±2.5 cm, and calculates the row-end turn before the tractor arrives, so the driver doesn't stop, judge, and manually re-line the next pass.
Value
Fewer overlaps and skips, less time correcting the wheel, and a driver who can focus on implement settings instead of the steering wheel.

Key Benefits
Why A Pro
GNSS/RTK Automated Steering
Pass-to-Pass Accuracy That Holds the Line
Less overlap and skip across the field means less wasted input and more consistent coverage from one pass to the next.
±0.0cm
Pass-to-Pass Accuracy
GNSS + RTK positioning combined with automated steering keeps the tractor within ±2.5 cm of the planned line, pass after pass.
Attitude-Based Terrain Compensation
Terrain Compensation on Uneven Ground
Keeps the implement on line even on uneven ground, where uncorrected systems would drift.
Built-in attitude sensing detects tilt or roll on sloped or uneven terrain and adjusts the steering path accordingly.
Smart U-Turn Path Planning
Smart End-of-Row Turning
The driver doesn't stop, reverse, and manually re-align at every row end, keeping the tractor moving through the transition.
Smart U-turn calculates the turn radius and path before the tractor reaches the headland, then executes it automatically into the next pass.
ISOBUS Section Control Integration
ISOBUS Coordination with Compatible Implements
Less double-application at headlands, and fewer separate control boxes cluttering the cab.
Where equipped with ISOBUS Section Control and Virtual Terminal, A Pro can switch implement sections on/off automatically and show each implement's controls on one in-cab screen.

Applications
Where It's Used
Customers
What Our Customers Are Saying
Katarzyna Nowak
Poland
“PRECISE A Pro keeps our tractor within ±2.5 cm of the planned line on every pass, so we've all but eliminated the overlap and skips that used to eat into our seed and fertilizer costs.”
Daniel Mwangi
Kenya
“Our fields aren't flat, and the Terrain Compensation on the A Pro adjusts the moment we hit a slope. The implement stays on line where our old system would have drifted.”
Nguyen Van Minh
Vietnam
“Smart U-turn calculates the headland turn before we even get there, so the driver never has to stop and re-align by hand. It keeps the tractor moving through every row change.”
Andrés Torres
Ecuador
“With ISOBUS Section Control and the Virtual Terminal, we run everything from one screen in the cab instead of juggling separate control boxes for each implement. Less clutter, less double-application at the headlands.”

Technical Highlights
Engineered Detail
±2.5 cm pass-to-pass accuracy via GNSS + RTK positioning and automated steering control.
Terrain Compensation for reliable path-holding on sloped or uneven ground.
Operating speed range of 0.1–26 km/h, covering both slow precision work and higher-speed field passes.
Approximately 30-minute installation based on standard fitment.
Six path-planning modes Straight Line, Curve Line, A+ Line, Pivot, Line Group, Diagonal Harrowing.
Smart U-turn for automated, pre-calculated end-of-row turning.
ISOBUS Section Control and Virtual Terminal support for coordinated implement control, subject to implement compatibility.

Technical Specifications
Full Spec Sheet
Technical Specifications
How It Works
From Setup to Result
Set Up the Path
The driver selects a path mode (Straight Line, Curve Line, A+ Line, Pivot, Line Group, or Diagonal Harrowing) based on the shape of the field.
Position and Steer
GNSS/RTK positioning combined with the automated steering system keeps the tractor on the planned line with ±2.5 cm pass-to-pass accuracy.
Compensate for Terrain
Built-in attitude sensing detects tilt on sloped or uneven ground and adjusts steering to keep the implement on line.
Plan the Turn Ahead
As the tractor approaches the headland, Smart U-turn calculates the turn radius and path before arrival, then executes the turn into the next pass.
Coordinate the Implement
Where ISOBUS SC/VT is configured, the system manages implement sections and displays the implement's control interface on the same in-cab terminal used for steering.
FAQ
Common Questions
It's a pass-to-pass figure: it measures how consistently the tractor repeats its line relative to the previous pass, which is what determines overlap and skip on the ground. It is not a claim of absolute position accuracy in every environment; actual results depend on correction source, GNSS signal conditions, and terrain.
Smart U-turn calculates the turn radius and steering path before the tractor reaches the headland and executes the turn automatically as part of the automated steering. The driver still monitors the operation and retains control of the tractor's other functions (speed, implement engagement, safety stops).
Terrain Compensation uses built-in attitude sensing to correct for tilt and roll on sloped or uneven ground, extending reliable path-holding to terrain that would otherwise cause drift. Performance still depends on the severity of the slope and overall field conditions.
ISOBUS Section Control and Virtual Terminal support depend on your specific implement's ISOBUS compatibility and the configuration ordered. Confirm against the current compatible implement list before assuming full section control or virtual terminal support for a given implement.
Standard fitment is designed to be completed in approximately 30 minutes; exact time depends on the tractor model and site conditions.
A Pro operates across 0.1–26 km/h, covering both slow, precision-critical tasks and higher-speed field passes.
A Pro is built for more complete field-operation automation: Smart U-turn, six path-planning modes, Terrain Compensation, and ISOBUS implement coordination. A2 is built for fast deployment and ease of use on existing machinery. See the A2 page for a direct comparison.
Get in Touch
Talk to PRECISE About A Pro
Tell us about your project and we'll route it to the right PRECISE team.
- Sales: sales@precise-geo.com
- Support: support@precise-geo.com
Take the Leap to Superior Accuracy. Get Your PRECISE A Pro Today!
Unlock precision and efficiency with PRECISE. Contact our sales team to confirm compatibility with your tractor and implements.