10 Best Grain Moisture Meters 2025 in the United States

The AgraTronix 30100, Ag-MAC PLUS Grain Moisture Meter is designed to measure the moisture content in grains, which is crucial for preventing spoilage and ensuring quality. One of its strong points is its accuracy, supported by the direct readout for over 20 different grain types, making it versatile for various agricultural needs. The device boasts a measurement range of 5% to 40% moisture, suitable for most grains, and operates in temperatures from 0° to 45° Celsius, which adds to its usability in different environments.

The multilingual LCD display is a notable feature, allowing users to select from several languages including English, Spanish, and French, making it accessible to a wider audience. Additionally, its USB compatibility enables easy software updates and personalizations, enhancing its functionality. Portability is another advantage, as it comes with a carrying case equipped with a handle and strap, making it convenient for field use. However, weighing 8.2 pounds, it might be slightly bulky for some users.

Durability seems to be well covered with its robust design and the inclusion of a carrying case for protection. On the downside, it requires 4 AA batteries, which are not included, potentially adding to the running cost. The product has been available since 2014, indicating it’s a tried and tested model, but it may lack some modern features found in newer models. The AgraTronix 30100 offers reliable performance, multiple language options, and good portability, although its weight and battery requirement could be minor drawbacks for some users.

The AgraTronix MT-16 Portable Grain Moisture Tester is designed for accuracy and convenience, making it a solid choice for farmers, cultivators, and grain sellers. One of its key strengths is its precise calibration, which can be adjusted to match local elevator standards. This versatility is further enhanced by its ability to handle 16 different grain scales and a moisture range of 5% to 40%. The backlit display with multilingual settings ensures readability even in low light conditions, which is a nice touch for those working in various environments.

Additionally, the tester can average up to 99 test results, providing a comprehensive overview of moisture levels. Portability is another advantage, with its compact size and lightweight design making it easy to carry around, especially with the included protective carrying case and shoulder strap. However, there are some drawbacks to consider. The device requires two 9V batteries, which, while included, could be seen as a hassle for some users who prefer rechargeable options.

Also, while the moisture display resolution of 0.1% is quite precise, some users may find the relatively small display dimensions (7 x 3 x 3 inches) a bit challenging to read. The MT-16 functions well within a temperature range of 32° to 113°F, but extreme conditions might impact its performance. In summary, the AgraTronix MT-16 offers reliable accuracy and ease of use, making it a suitable tool for those who need a portable and versatile grain moisture tester, despite its minor inconveniences related to battery usage and display size.

The Draminski Hay & Straw High-Moisture Meter is designed to measure moisture levels in hay and straw, with a range from 10% to 80%. This covers most typical moisture levels you'd expect when checking quality for storage or processing. It includes a temperature display in Fahrenheit, which is helpful since moisture readings can be affected by temperature. The large LCD with clear numbers makes it easy to read results, and the 22-inch probe allows you to test deeper into bales for more accurate sampling.

The meter operates on a 9-volt battery and weighs about 1.36 kg (around 3 pounds), making it portable enough for field use but not ultra-light. It’s not designed for extremely cold environments (minimum 32°F), so it should be used with caution if working outdoors in freezing temperatures. The device’s durability looks solid with a tabletop mounting option, but it’s primarily intended for hay and silage rather than grains directly. If you need a meter for general grain moisture, this model is more specialized toward hay and straw, which might limit its usefulness in some grain-focused settings.

This meter is a good choice for those who regularly measure moisture in hay or straw and want a clear temperature readout alongside moisture readings. It is user-friendly and offers practical features like minimum, maximum, and average functions. For moisture measurements focused purely on grains or use in very cold conditions, other options may be better suited.