Introducing The New GrainMate GM-102 Grain Moisture Meter

Last updated: March 25, 2021

Since 2018, our GrainMate Grain Moisture Meter has helped farmers, aggregators, and commodity traders to easily and efficiently measure the moisture content of grains. The first GrainMate moisture meter we developed was named GM-101. In November 2020, we launched a new and improved model; the GrainMate GM-102 Grain Moisture Meter. In this article,  you’ll discover the improvements we have made with the GM-102 and the differences between the two models.

Why the “GM-102”?

At Sesi Technologies, we are committed to constantly improving our technologies through customer feedback. After receiving feedback from customers using our GrainMate GM-101, we identified many ways we could improve the meter to enhance the usability, durability, and accuracy of the meter. This led to us developing the GrainMate GM-102 in response to the feedback. The GM102, therefore, comes with new features and improvements which we have shown below.

What’s New with The GrainMate GM102 Grain Moisture Meter?

The GM102 has improved features in the areas of power supply, mode of testing, its alert system, calibration, packaging, battery level, and grains supported.

Here is what’s new with the GM-102;

Power Supply

GM-102 is powered by two AA batteries which are easier to find on the market and last 10x longer than the 9v batteries which powered the GM-101. They are also 10 times cheaper which means you’ll spend less money on batteries.

Measurement Time

Our new measurement algorithm now shortens the time it takes to take a moisture reading from about 5 mins to about 2 minutes. 

We have also improved the way moisture is read. With the GM-101, the readings kept changing continuously. But with the new GM-102, the reading now happens in the background and only the final reading is displayed to you.


Also, GM-102 now comes with a 3rd party calibration feature which makes it possible for 3rd parties such as the Ghana Standard Authority to calibrate your meter to make sure it still reads properly even after a long time.

Supported Commodities

The GM-102 supports two new commodities – groundnut and millet, with more commodities on the way.

Power Management

In addition, GM-102 features some intelligent power management features such as sleep mode. After 10 minutes of inactivity, the meter goes to sleep, which saves you battery power and makes your battery last longer. And each time you turn on the meter, the battery level is displayed so you know if your battery needs to be replaced soon.

The new GrainMate App

Lastly, GrainMate GM-102 comes with a mobile application that lets you record your moisture readings and get immediate recommendations on whether your grains are too dry or too wet. You can also register your device and get quick support when you have any issues. Also, get access to a growing collection of post-harvest management resources to help you improve your post-harvest practices. Download the app for Android here 

Here’s How the GrainMate GM-102 and the GM-101 Compare Side by Side

GM-102 GM-101
Power supply Powered by 2 x 1.5v AA-size batteries  Powered by a 9v battery 
Measurement time Shows final moisture reading within 2 minutes Shows a stable reading within 5 minutes
Calibration Features a built-in third party calibration functionality No 3rd party calibration functions available
Power management Auto sleep feature with battery level indicator and improved hardware makes battery last 10x longer Battery needs frequent replacement if the meter is used very frequently
Supported commodities Maize, Rice, Sorghum, Wheat, Soyabean, Millet, Groundnut Maize, Rice, Sorghum, Wheat, Soyabean, Chickpea
Mobile application Comes with a mobile application that lets you register your devices for quick support Can be used with the GrainMate mobile app

Our Offer

The new planting season is about to begin! And we want our existing GrainMate customers to have the best experience with our products. So we are offering to upgrade your GM-101 to our new GM-102 for only half the price at GHC 300 between now and April 30th as part of our Easter promo.

For new customers who order a GrainMate GM-102 Grain Moisture Meter between now and April 30th, you will receive a 10% discount, two free ZeroFly Hermetic bags, and a free one-hour post-harvest management consultation for aggregators, commercial farmers, and poultry farmers.

Call us on  +233555699870 or send us a message in the chat on the bottom right to contact us about our offer or discover how our solutions can help your agribusiness thrive.

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Are you a grain farmer, grain trader or agribusiness? Discover how our technologies can help you reduce post-harvest losses, maximize your productivity and increase your income.

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