Farmers know that grain moisture is one of the most important measurements to take. Moisture in grain can have serious implications on the quality of your crops and how they are stored. It’s important to know when it’s time to harvest and if moisture levels need adjusting before shipping or storing. The Best Grain Moisture Tester – A Must-Have for Every Farm will help you stay one step ahead of any potential problems with your crop.

Top 5 Grain Moisture Tester

1. AMTAST Smart Grain Moisture Meter

Last update on 2022-05-19

The world of agriculture is changing. Now farmers in remote parts of the country can analyze their crops in ways that were formerly only available to commercial farms thanks to AMTAST Smart Grain Moisture Meter. This innovative device has applications for 17 different kinds of grains, including wheat, maize (corn), Japonica rice, Indica rice, soybean, rice, sorghum, rapeseed milkvetch pea bean hemp seed sunflower seed coffee beans) cocoa beans. It also allows automatic weighing and temperature compensation so farmers get accurate data with snap results!


  • Wide coverage of grain varieties
  • High accuracy
  • Energy efficient
  • Long-lasting


  • Unable to measure on parchment

2. Huanyu Multifunctional Fibre Moisture Meter

Last update on 2022-05-19

Huanyu Multifunctional Fibre Moisture Meter is designed to accurately measure moisture content in many materials, including wood fiber, grains, hay, straw, and bran. With the help of its temperature and humidity compensation technology combined with high measurement accuracy for stability purposes. The smart device can be easily carried on hand anywhere it’s needed for quick detection only weighing 0.12 pounds! It also has a clear display that’s easy to see in dim lighting conditions because of Huanyu’s backlit LCD display technology that doesn’t consume too much power.


  • Versatile compatibility
  • Energy-efficient functioning
  • Lightweight
  • Compact
  • Durable
  • Easy to use


  • Expensive

3. Agratronix MT-Pro Portable Moisture Tester

Last update on 2022-05-19

With a sturdy carrying case and built-in strap, the Agatronix MT Pro is sure to be your go-to moisture tester! It has been designed by professionals for professional use. A direct readout of 40 different grain scales allows you to test high moisture grains up to 40%. Full illumination at your fingertips means you don’t have to worry about not being able to see what’s going on, especially when calibrating. You also get single or precision multi-point calibration so any local elevator can match up with this handy tool!


  • Lightweight and long-lasting
  • High operational efficiency
  • Precise readings


  • Difficult to calibrate

4. John Deere Moisture Check Plus SW08120

Last update on 2022-05-19

Whether you are storing your grain or just interested in keeping tabs on the moisture content, this Moisture Check Plus SW08120 is perfect for you! With an operating range of 5% to 40%, the display will show an accurate reading. The LCD screen has a large font so it can be read easily and there is space for 40 different grains per calibration. If you want even more information about your product, with each test having average measurements for consecutive tests, averaging lets you see how things have been changing over time.


  • Large backlit LCD display
  • Accuracy: ± 0.5%
  • Functional and streamlined design
  • Easy operation


  • Delivery may take time

5. Smart Grain Moisture Meter GM005

Last update on 2022-05-19

The Smart Grain Moisture Meter GM005 is an expert smart device that provides accurate, convenient measurements of moisture, density, and weight in grains. Its bright LCD display clearly shows temperatures in either degree Celsius or Fahrenheit with a power-on self-test function! The multiple-point calibration ensures the accuracy of your readings so you can better know how much water to add to dry out spoilage!


  • Multi-point calibration
  • Clear backlight LCD display
  • Automatic weight and temperature compensation
  • Self-test function
  • Designed for 24 kinds of grains moisture tests


  • Non-portable

What is a grain moisture meter and what do you need it for?

The best corn grain moisture tester is a must-have for every farm. It will help you stay one step ahead of any potential problems with your crop. A grain moisture meter measures the amount of water in grains, which can impact both their quality and storage. Farmers know that there are many factors to consider when it comes to harvesting crops including time available before the first snowfall or heavy rains arrive, whether additional equipment like combines or wagons are needed at harvest time, how much corn silage versus freshly shelled corn should be harvested for feed rations and what seed variety would produce under this year’s growing conditions? The list goes on but all these decisions take place against the backdrop of knowing exactly how wet the crop is so they don’t risk losing it in the field before harvest is complete.

How does moisture affect the quality of grain?

The moisture content of grain can affect the quality in a few different ways. The first way is that too much or too little water will prevent proper storage, which could lead to mold growth. Mold growing on stored grain can reduce its value by creating off-flavors and odors so it’s important to keep your grain at an appropriate moisture content. The handheld grain moisture tester is an efficient way to measure the amount of water in your grain, which can help you make sure that it will not spoil during storage.

Another effect of too much or too little moisture on seed quality is related to germination rates and vigor (also called green strength). A seed’s ability to germinate is largely dependent on the amount of water present inside it. If too much moisture is present in dry seed, then germination will be delayed or inhibited altogether. Too little moisture can also inhibit a seed from sprouting but not as severely as having excess amounts of water would.

What to look for when choosing grain moisture tester

The best grain moisture tester for your needs will depend on whether you need to take measurements of whole seeds or split kernels. You’ll also want a device that is easy to use and accurate within a range suitable for the application at hand, as well as one that has good durability if it’s going to be exposed to harsh conditions during its time on the farm.

Type of Tester

Grain moisture testers are usually either electronic or manual. Electronic devices use a probe, digital screen, and timer to take measurements that can be displayed in both percentages of water content or weight loss over time. They also have the benefit of being able to store multiple readings for later reference if you’re testing samples from more than one location at once. Most of these devices are not waterproof, however.

Manual testers only require a few pieces of equipment to use and can be more affordable than electronic models for this reason. They also don’t need battery power or replacement parts as often as their digital counterparts do. However, they may take longer to get measurements from samples because you have to look up your charts and do your own calculations.

Battery size

The battery size and life of a grain moisture tester will vary depending on the model. Some models require two AAA batteries while others may use three or four AA batteries. Keep in mind that if you are using rechargeable batteries, it is important to make sure they are fully charged before testing your grains. Batteries are also likely to drain batteries quickly, especially in cold weather.


The moisture tester is an accurate device that gives you the results in percentage. The result stays for a long time and does not change with every use.

Probes and Pans

The point of contact is made using stainless steel probes and pans, which are food-safe. The stainless steel also makes it easy to clean and store in a food-safe environment.

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