In-line Moisture Meter for Grains – UmiGrain

In-line Moisture Meter for Grains

In-line Moisture Meter for Grains to ensure grain quality and costs reduction for storage

What is In-line Moisture Meter for Grains umigrain?

The In-line Moisture Meter for Grains, UmiGrain, is the Marrari solution for measuring the in-line moisture for grains and their derivatives passing on a conveyor or production line in real time. It has a sensor with active capacitive principle, i.e. the measurement is more accurate and faster than by resistance.

Why use the Umigrain on my production line?

Why the measurement of the moisture of your material/product is essential to maintain the quality of it. For example: If the grain is coming out of the dryer with a high humidity, it may germinate in the silos, or rot in the same way compromising production.

So it is extremely important to measure the moisture of the grains coming out of the dryer to avoid unnecessary losses and have a high quality end product.

How does the Umigrain work?

It works via capacitativity, i.e. it is installed a sensor on the treadmill and while the material is loaded by it, it passes over the sensor and is read the moisture of the product second to second. So having a real moisture measurement.

How precise the Umigrain?

It uses a calibration method for recipes. In short: You use the Tracker (equipment that goes along with the Umigrain) that collects samples during the day and compares them with the laboratory.

If you have divergences, you can go to the included Tracker software and update the values to match the lab test, thus ensuring your accuracy.

If I want to buy the meter with a recipe ready for my product?

Just send a sample of your product to us at Marrari. More specifically Umilab, where we will create a specific recipe for you according to the lab!

Contact us to find out more!

And why use the Marrari equipment?

Because our equipment is optimized for your company! We create ways to improve the performance of production processes without excessive loss using methods such as OEE and Industry 4.0. Thus creating a more efficient, productive and modern production environment!

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Want to know more technical information about the equipment? Check below for more information! and ask for your budget!


The main application of UMIGRAIN is in the monitoring of cereal drying where moisture sensors are installed at the inlet and outlet of the dryer.


  • Measurement range: 3 to 150% bs or 3 to 60% bu
  • Application temperature: Sensors: up to 80ºC; Transmitter: up to 50ºC
  • Interfaces: analog signal, MODBUS, PROFIBUS, ETHERNET communication
  • Accuracy: better than 3% of the full scale used (varies with material)

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