SpotOn® Paper for Agriculture & Ag Drone Applications

SpotOn® Paper is the industry standard for evaluating spray coverage and droplet deposition. The yellow paper turns blue to allow for quick and easy spray visualization: visualize spray coverage, visualize droplet size and uniformity and visualize off target application. Whether you’re calibrating sprayers, testing nozzles, or conducting research, our water sensitive paper provides a simple, reliable way to visualize and measure spray performance.

See what your spray is really doing

The bright yellow paper instantly turns blue on contact with liquid, creating a clear visual record of droplet placement, density, and uniformity.

Optimize coverage & reduce waste

Quickly identify under-application, overlap, or off-target drift so you can fine-tune flight paths, nozzle selection, pressure, and application height.

Improve compliance & documentation

Create a physical record of spray performance to support audits, training, trials, and best-practice documentation.

Built for real-world field conditions

Trusted by applicators worldwide, SpotOn® Paper performs reliably in both ground and aerial operations.

The SpotOn® Paper Difference

Not all water sensitive papers perform the same. SpotOn® Paper is engineered for professionals who need accuracy, clarity, and dependable results in real-world conditions. While other water sensitve paper on the markets tend to produce uneven color response, distorted patterns, or inconsistent performance in the field, SpotOn® Paper delivers a sharp record that accurately reflects spray coverage, droplet distribution, and application quality. The result is faster evaluation, more confident adjustments, and better documentation, so whether you’re calibrating equipment, validating drone spray patterns, or conducting research, SpotOn® Paper shows you what your spray is really doing.

spoton paper water sensitive yellow blue agriculture drone spray

Better High-Humidity Tolerance

SpotOn® Paper is engineered to perform in real agricultural environments, where heat and humidity are unavoidable. Its moisture-resistant construction helps prevent premature activation and inconsistent results, delivering reliable spray coverage data.

Doesn’t Warp in the Field

Unlike many water-sensitive papers that curl or deform when exposed to moisture, SpotOn® Paper stays flat during application and collection. This ensures clean, accurate spray impressions, easier placement in crop canopies, and more consistent interpretation, so you can trust your data from the field to the lab.

spoton paper water sensitive packaging 2025

Long 3-Year Shelf Life & Made in the USA

SpotOn® Paper is proudly made in the USA and designed for long-term reliability, with a sealed shelf life of up to three years. That means dependable performance when you need it, less product waste, and confidence that every sheet meets the same high standards, season after season.

Spot Success With SpotOn® Paper

SpotOn® Paper is available in three practical formats to match any application. 1″ × 3″ cards for quick nozzle checks and targeted spot testing, 2″ × 3″ cards for broader spray pattern analysis, and 9.5″ × 11.75″ sheets for full-coverage evaluations, training, and demonstrations. Whether you’re fine-tuning individual outputs or documenting large-area performance, there’s a size designed to deliver clear, accurate spray insights.

SpotOn®

Paper

Price range: $33.00 through $110.00 US List Price

How To Use SpotOn® Paper

To use, simply attach the paper to selected areas: clip or staple it to branches, leaves, or vines; affix it to wooden laths for field spraying; or attach it to blocks spaced 1–3 meters (3–10 feet) apart for aerial spraying. Note the location on the back of each card. After spraying, allow the paper to dry, then collect and analyze.

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