---
product_id: 539697571
title: "SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 9.75\"x11.75\" Paper - 5 Big Sheets - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage"
brand: "fgi"
price: "$U12167"
currency: UYU
in_stock: true
reviews_count: 1
category: "Fgi"
url: https://www.desertcart.uy/products/539697571-spoton-water-sensitive-paper-wsp-for-sprayer-calibration-one-pack
store_origin: UY
region: Uruguay
---

# Instant blue color change for precise spray visualization 9.75" x 11.75" large sheets for broad coverage Reclosable seal + desiccant for extended shelf life SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 9.75"x11.75" Paper - 5 Big Sheets - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage

**Brand:** fgi
**Price:** $U12167
**Availability:** ✅ In Stock

## Summary

> 💧 Spot the Difference, Spray with Confidence!

## Quick Answers

- **What is this?** SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 9.75"x11.75" Paper - 5 Big Sheets - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage by fgi
- **How much does it cost?** $U12167 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/539697571-spoton-water-sensitive-paper-wsp-for-sprayer-calibration-one-pack)

## Best For

- fgi enthusiasts

## Why This Product

- Trusted fgi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Visualize Spray Like a Pro:** Yellow sheets turn blue on contact with moisture, making spray patterns instantly visible for flawless calibration.
- • **Built to Last, Rain or Shine:** Humidity-resistant paper with resealable packaging keeps your test sheets fresh and ready, indoors or out.
- • **Maximize Crop Health & Yield:** Ensure precise chemical application to reduce waste and boost your plants’ performance—because every drop counts.
- • **Flexible Sizing for Every Job:** Choose from multiple sheet sizes to perfectly fit your spray area and testing needs—no more guesswork.
- • **Made in the USA by Industry Leaders:** Crafted with proprietary precision by Innoquest, trusted innovators in agricultural testing technology.

## Overview

SpotOn Water Sensitive Paper offers large 9.75" x 11.75" sheets that instantly turn blue upon spray contact, enabling quick and accurate visualization of spray coverage, droplet size, and uniformity. Designed to improve crop health by ensuring precise chemical application, it features humidity-resistant paper with resealable packaging and desiccant for extended shelf life. Made in the USA by Innoquest, this product is ideal for both indoor and outdoor use and comes in multiple sizes for versatile placement.

## Description

SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 9.75"x11.75" Paper - 5 Big Sheets - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage: desertcart.com: Industrial & Scientific

Review: Well protected, responsive, small footprint - Well protected, responsive, small footprint: This product comes nicely encased in a protective film pouch that is thankfully resealable - given the moisture-sensitive nature of the product, I'm very happy I won't have to use them all at the same time and can in fact re seal them with a nice quality seal. The paper when in use is pretty responsive to moisture and really does assist me when I'm trying to spot leaks in my homemade hydroponic system. The sheets are also about the same size as a normal sheet of paper, so you can spread them out nicely to take samples of certain areas - these will not cover a huge footprint but will allow you to spot check several locations simultaneously. Overall, this is a good set and I would recommend.

## Features

- The yellow spray test cards turn blue to allow for quick and easy spray visualization: visualize spray coverage, droplet size and uniformity, and off target application.
- Improve crop health and yield by ensuring correct application of chemicals while reducing overspray and waste. Accurate spray patterns will ensure crops receive correct nutrients or protection.
- Get improved shelf life with the unique reclosable seal, included tweezer, and desiccant packet. Does not warp in humid conditions. Great for indoor and outdoor use.
- Available in three different sizes for increased flexibility in placement. Extra small 1"x3", small 2"x3" and large 9.75"x11.75". And also in multipacks for ease of ordering.
- SpotOn spray droplet paper is made in the USA by Innoquest, a leader in agriculture test and measurement products. In house proprietary production process is tightly controlled.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C47JBR9C |
| Best Sellers Rank | #237,779 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #378 in Bulk Quantity Paper Towels #941 in Paper Towels |
| Date First Available | May 3, 2023 |
| Item Weight | 10.6 ounces |
| Item model number | SpotOn 9x12 |
| Manufacturer | Innoquest |
| Product Dimensions | 12 x 10 x 0.5 inches |

## Product Details

- **Brand:** FGI
- **Manufacturer:** Innoquest
- **Recommended Uses For Product:** Agricultural Spray
- **UPC:** 311778442948
- **Unit Count:** 5.0 Count

## Images

![SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 9.75"x11.75" Paper - 5 Big Sheets - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage - Image 1](https://m.media-amazon.com/images/I/31AhA9TvCdL.jpg)
![SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 9.75"x11.75" Paper - 5 Big Sheets - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage - Image 2](https://m.media-amazon.com/images/I/31BYejguU7L.jpg)
![SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 9.75"x11.75" Paper - 5 Big Sheets - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage - Image 3](https://m.media-amazon.com/images/I/31qQ+Te3pFL.jpg)
![SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 9.75"x11.75" Paper - 5 Big Sheets - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage - Image 4](https://m.media-amazon.com/images/I/41+Eygtdb9L.jpg)
![SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 9.75"x11.75" Paper - 5 Big Sheets - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage - Image 5](https://m.media-amazon.com/images/I/41cp3XEiaGL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well protected, responsive, small footprint
*by P***N on November 23, 2023*

Well protected, responsive, small footprint: This product comes nicely encased in a protective film pouch that is thankfully resealable - given the moisture-sensitive nature of the product, I'm very happy I won't have to use them all at the same time and can in fact re seal them with a nice quality seal. The paper when in use is pretty responsive to moisture and really does assist me when I'm trying to spot leaks in my homemade hydroponic system. The sheets are also about the same size as a normal sheet of paper, so you can spread them out nicely to take samples of certain areas - these will not cover a huge footprint but will allow you to spot check several locations simultaneously. Overall, this is a good set and I would recommend.

## Frequently Bought Together

- SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 9.75"x11.75" Paper - 5 Big Sheets - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage
- FGI SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 2 x3 Paper - 25 Sheets Per Pack - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage
- SpotOn Water Sensitive Paper (WSP) for Sprayer Calibration - One Pack of 1"x3" Paper - 50 Sheets Per Pack - Reduce Waste and Ensure Consistent Application of Spray Droplets - Assess Spray Coverage

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-13*