Designed with Farmers in Mind

Here at Koster Moisture Tester. Inc, we’ve worked closely with many large-scale crop producers to provide top-notch products. Our moisture testers are critical to a farm’s operations, allowing you to make informed harvesting decisions. We also offer a large variety of chemicals to further ensure you get your best harvest.

Microbe Life Hydroponics, now available through Koster Moisture Tester!

Are you looking for ways to improve your crop growth, and achieve bigger buds, fruits, and blooms? Look no further, as Microbe Life Hydroponics has the perfect products for you.

Why Choose a Koster Moisture Tester?

Our moisture meters can be used to test the moisture content in a vast variety of industries. Our customers commonly use Koster moisture meters for grain, hay, silage, wood, and much more!

We Support the Right to Repair

We believe you should have the right to repair your own products. The majority of our moisture meters last for decades without any issues but due to improper storage or other environmental factors, your moisture meter may need to be repaired. All of the parts needed to repair your moisture meters are for sale in our online shop. We also provide written and video instructions on how to perform the most common repairs.

An Industry Leader since 1948

Koster Moisture Tester has a reputation for providing the market with the highest quality and most accurate moisture meters.
Designed and Manufactured in the USA.

We support many distributors around the world with a variety of tools and resources. We offer everything from eGuides to marketing resources for our distributors. Become a Koster Dealer Today.