9 Best Grain Moisture Testers 2025 in the United States

The Agratronix Coffee Moisture Tester Model 08150 is a specialized device designed for measuring the moisture content in various coffee commodities, including green coffee, parchment coffee, and cocoa. Its accuracy ranges from 4% to 40%, depending on the type of coffee, making it a versatile tool for coffee producers and enthusiasts who need precise moisture readings. The backlit multilingual display ensures that users can easily read results even in low-light conditions, enhancing its usability.

Additionally, the device offers both a basic mode and an advanced precision calibration mode, allowing for flexibility in measurement depending on the user's needs. This tester is handheld and portable, making it convenient to use in various settings. However, it is noteworthy that the device requires two 9V batteries, which are not included, adding an extra step before use. The tester is also calibrated to match local elevator tabletop moisture testers, providing compatibility with professional equipment for more accurate results.

While it does offer precise measurements, it is limited to a specific moisture range and might not be suitable for other grains beyond coffee and cocoa. The product is durable and operates well within a broad temperature range from 32°F to 113°F, catering to different environmental conditions. The Agratronix Coffee Moisture Tester is a reliable and user-friendly device for those specifically dealing with coffee commodities, though its application is somewhat limited to that niche.

The AMT65C Grains Moisture Meter is a versatile tool that can measure the moisture content of 25 different types of grains, including common ones like wheat, corn, and soybeans, as well as more specialized grains such as rapeseed and coffee beans. It offers both moisture and temperature readings simultaneously on a backlit display, which is practical for users who need quick, accurate data in various lighting conditions.

The option to connect an external temperature sensor adds to its versatility. Weighing only 0.88 kilograms and with compact dimensions, it is portable and easy to handle, making it suitable for both field and tabletop use. The use of alkaline batteries ensures it can be powered conveniently and is not dependent on frequent recharges.

Users looking for a reliable and multi-functional grain moisture tester will find this product useful.

The John Deere Moisture Tester SW08120 is a robust tool designed for farmers and grain handlers. This device stands out with its impressive accuracy of ± 0.5% in the normal moisture range for stored grain, offering reliable and precise moisture readings. It caters to a wide variety of grains, with direct readouts available for 40 different grain scales, making it highly versatile in grain compatibility.

The measurement range is broad, operating between 5% to 40% moisture depending on the type of grain, which covers most practical needs in grain testing. One of the significant user-friendly features is the larger, illuminated graphic LCD display, which makes it easier to read results even in low light conditions. Additionally, the automatic averaging of consecutive tests and the option to store calibration data for all grains enhance its ease of use.

Portability is another strong suit, given its compact dimensions (9 x 5.2 x 5.1 inches) and light weight (2.4 pounds), making it convenient to carry around. Calibration is straightforward with the device storing average calibration for all grains, ensuring consistent accuracy over time. However, users should be aware that while this moisture tester is quite sophisticated, it may come with a learning curve for those unfamiliar with such equipment. Additionally, as it was first available in 2013, it might lack some of the latest technological advancements present in newer models. This device is ideal for professionals in agriculture who need a reliable, portable, and accurate moisture tester for a variety of grains.