Retrofit your existing onion harvester with real-time yield mapping. Designed for Top-Air Topper Loader, Univerco Rider, Asa-Lift (Grimme), Dewulf and Simon machines.
Request a DemoOnions are a precision-irrigation, precision-fertility crop. Yield maps let you see whether weak patches are soil, water, disease pressure or variety — and plan rotation accordingly.
Yellow, red, white, sweet, long-day and short-day varieties — one kit, no configuration changes.
Mass flow measured after topping and cleaning stages — log marketable onions, not gross lifted volume.
Live tonnage tracking helps you stage drying floors, curing barns and packing line deliveries.
Selected models below. Pickup-style and one-step (topping-and-lifting) onion harvesters.
| Brand | Compatible Onion Harvester Models |
|---|---|
| Top-Air | Topper Loader series — One-Step onion harvesters (pull-type and self-propelled) |
| Univerco | Rider I (long-day onion pickup harvester); Challenger I (long-day and short-day, dry and wet conditions) |
| Asa-Lift (Grimme group) | SP200 (onion); T-200, T-300; WR-180SP |
| Dewulf | GE-series onion harvesters and onion lifters |
| Simon | PerryLis-style onion lifters and 1- / 2-row harvesters |
| Grimme | MARS (onion handling and bunker) |
A complete retrofit kit for bulk-crop harvesters — load cells, sensor controller, telemetry module and GPS antennas. Install on your onion harvester without dealer involvement.
Load cells mount on the elevator structure; cab module handles GPS, processing and cellular data. Same hardware platform as our potato kit — sized for onion harvester flow rates.
Tell us your harvester make, model and row count — we'll size the kit for you.
Contact SalesYes. Both pull-type and self-propelled Top-Air Topper Loader configurations accept the kit on the main elevator after the topping stage.
Yes — see potato yield monitoring and mixed-fleet yield data. The software platform handles all bulk crops on a unified dashboard.
Yes. The kit is IP67-sealed and validated through full season harvests in the Netherlands, Spain, Egypt and the western US dryland onion regions.
All major onion harvesters: Top-Air Topper Loader series (one-step onion harvesters); Univerco Rider I and Challenger I; Asa-Lift (Grimme group) SP200, T-200 and T-300; Dewulf GE series and onion lifters; Simon onion lifters and harvesters; legacy 1- and 2-row pulled onion harvesters used across the US, Netherlands, Spain and Egypt.
Yes. The sensor measures mass flow regardless of variety, so dry yellow onions, red onions, white onions and short-day varieties all run on the same kit with no configuration changes.
Yes. The load cells read mass flow after topping and cleaning stages, so the yield log reflects marketable onions rather than gross lifted material.
Yes. Both pickup-style (Asa-Lift SP200, Univerco Rider) and one-step (Top-Air Topper Loader, Univerco Challenger) harvesters install the same kit on the main elevator.