10 Best Grain Moisture Meters 2025 in the United States

The Agratronix MT-Pro Portable Moisture Tester is a versatile tool designed for accurately measuring moisture in various grains. One of its standout features is the direct readout for 40 different grain scales, making it highly useful for diverse grain testing needs. It can test grains with moisture content up to 40%, which is quite high, and offers a readout accuracy of ±0.5%, ensuring reliable results.

The illuminated multilingual LCD display is another significant advantage, facilitating easier use across different languages and lighting conditions. The inclusion of a protective carrying case with a shoulder strap enhances its portability, making it convenient for field use. Additionally, the device supports both single-point and precision multi-point calibration, allowing users to match local elevator standards, further boosting its accuracy and usability.

The product dimensions (12 x 10 x 5 inches) and weight (1.94 pounds) are manageable but might not be the most compact or lightweight option available, potentially making it a bit cumbersome for some users. Despite being battery-powered and coming with included batteries, the reliance on a 9-volt battery might be considered a drawback for those who prefer rechargeable options. The Agratronix MT-Pro Portable Moisture Tester is a reliable and user-friendly device with excellent features for grain moisture testing, particularly suitable for users needing accurate and multilingual capabilities. Its size and battery type may not be ideal for everyone.

The AMTAST Grain Moisture Meter is a solid choice for anyone needing to measure the moisture content in a wide variety of grains—supporting 22 types including wheat, soybean, and coffee. It stands out for its high accuracy thanks to an advanced multi-point calibration system and automatic temperature compensation, which helps keep readings reliable even when weather conditions change. The device covers a broad measurement range and includes a large range error correction feature, reducing mistakes in moisture readings across different grains and moisture levels.

Its LCD display is clear and easy to read, making it convenient for quick checks whether you’re in the field or a lab. In terms of portability, it runs on a 9V battery that can last up to a year and has an automatic shutdown to save power, which is great for long-term use without frequent battery changes. The meter is somewhat on the heavier side at around 1.6 kg and is designed as a tabletop device, so it’s portable but not pocket-sized.

The build appears durable enough for regular use but doesn’t mention any special rugged features for very harsh environments. This meter is well-suited for farmers, grain processors, or anyone needing accurate moisture data from multiple grain types, though those needing ultra-light or ultra-compact devices might find it a bit bulky.

This handheld grain moisture tester is designed to measure grain moisture percentage and meets the Gac2100b U.S. Federal Grain Standard, suggesting it provides reliable accuracy for general farming or storage needs. The compact design and battery-powered operation make it fairly portable, though the device weighs over 6 pounds, which might feel a bit heavy compared to other handheld meters.

The device doesn't include batteries, so you will need to provide your own, which is a minor inconvenience. Durability-wise, its solid build and temperature rating up to 122°F indicate it should handle typical field environments reasonably well.

This meter may suit casual users or small-scale farmers looking for a straightforward and federal-standard-compliant tool but could lack advanced features or the lightweight design favored by professionals.