Moisture meter for cereals, maize, grass seeds, oilseeds, and legumes seeds. No. 1 among the moisture meters equipped with grain compression modality.

Unique on the market: handy, small and professional.


Invest in a high-tech moisture meter!

The device will increase the profitability of your business:

  • You will be sure to sell cereals with the best moisture level,
  • You will save time and money by avoiding buying deductions,
  • You will safely store even large quantities of cereals for a long period of time,
  • You will prevent heat damage of grain in silos,
  • You will reduce the risk of mould contamination in cereal batches,
  • You will know the quality of your grain,
  • By investing in purchasing the moisture meter you will also have an accurate agricultural thermometer with intelligent/high-tech functionalities.


Why choose DRAMINSKI TwistGrain pro? – the decision is easier than ever before





As the manufacturer, we offer our moisture meter with a 3-year warranty. Before sending to the client, each device is checked for quality of the manufacturing process and correct measurements.

Our Service Unit will do their best to repair and check your device as soon as possible from the delivery date. In cases with a more complex repair process, whenever possible. Our company is certified with two rigorous Quality Management Systems: ISO 9001 and ISO 13485, which proves our professionalism and the highest quality of our products.



The moisture meter has two operational modes that are tailored to the needs of a user and can be easily changed on the menu:

Basic – for a quick and accurate moisture measurement (intuitive and very convenient handling, even for non-experienced users).

Advanced – activates many additional functionalities that will be appreciated even by the most demanding clients. This mode allows for recoding the moisture and temperature measurements with date and hours, data transfer to the PC, temperature measurements with an external temperature probe and many other options.



Four frequencies ensure that the measurement is steadier and its result is less susceptible to unusual samples, the risk of blips is lower and the repeatability is high. You can quickly measure the moisture of grain with an accuracy of ±0.5% for normalized grain.

Grain temperature is also an important factor for moisture measurements and TwistGrain pro is thus equipped with a digital temperature sensor (built in the measuring chamber) to ensure a very accurate measurement (accuracy: ±0.5°C). TwistGrain pro has an automatic temperature compensation mode.

Importantly, DRAMINSKI S.A. devices do not require periodical calibration service checks.



You can fill the measuring chamber without any additional tools or special medium. Simply, grasp some grain with the device, push away any excess towards the edge of the chamber and tighten the cap.

When screwing the cap, the acoustic signal will indicate that the grain sample is adequately squeezed. Since keeping the device comfortably in your hands (tightening the cap does not require using much force) it is not tiring even after many measurements.



A large graphic and LED- illuminated display allows reading the result in any conditions (field/warehouse, full sun/night). The menu enables the user to adjust the display settings: illumination time, illumination intensity and contrast.



The TwistGrain pro device is equipped with the real time clock, which, together with huge data storage capacity, allows recording 50,000 moisture measurements and temperature measurements from the external probe (records with date and hour).

The data storage mode covers up to 400 species and 20 language versions and makes the device a very useful and universal tool for each farmer, expert, drying room operator, gardener, barista or entrepreneur for the food and agriculture industry.



The TwistGrain Pro moisture meter comes with free, multi-language software for data transfer to PCs.

The software generates Excel sheets and measurement reports (by species and by measurement date), presents the moisture changes in time on the graphs, filters the results by date, allows browsing the stored data, has archiving functionality limited only by the hard disc capacity, saves the documents as PDFs, prints, and has many other useful functions.



The regular model of TG pro moisture meter has a list with 30 grain species (as detailed below). However, if required by the client, we can load more species before delivering the device. If the list does not feature a species you are looking for, please Contact Us. TwistGrain Pro will accommodate up to 400 species.

All available calibrations can be found in the “Available species” bookmark.

The TG Pro display allows you to conveniently read the full name of a given species without any abbreviations or symbols (the long name scrolls automatically on the display).



Do you want to check the moisture of a species that is not put on your device? This is not an issue with the TG Pro moisture meter.

All you need to do is to select the option “Add species” and then enter a specific code that permanently activates the required calibration of the list.

Thanks to such innovative solutions, a user can, in just a couple of minutes and without going out or sending the device to the service section, add a new species to the list of available measurement options or deactivate the species they want to delete (to get the code, please Contact Us).



Additionally, you can order the external temperature probe that generates precise measurements (±0.5°C) of crops stored in piles, flat warehouses or silos.

The device can work with any number of probes with varied construction and length (and there is no need to calibrate the probe for the device). Each probe wired up to the moisture meter can be assigned a name according to personal preferences (the data storage capacity allows recording the names of max. 20 probes).

When the name is recorded for a given probe, a catalogue is created in the data storage; this catalogue will accommodate measurement to transfer them to the PC for analysing, generating reports, archiving etc. When the probe is wired up, the device automatically detects it and displays the name.

High-quality stainless-steel guarantees durability (and corrosion resistance). The data storage capacity allows recording 50,000 temperature measurements with date and hour.



A quick check of moisture and temperature will help you manage, store or sell crops more efficiently, which will quickly translate into increased profits for your business.



The TG Pro comes with a durable mini-USB port that is used to connect an external temperature probe and transfer the data to the PC, automatic updates and moisture curves. That’s why the DRAMINSKI TwistGrain Pro is simply unmatched!!!



Twist Grain Pro has 4 buttons on the keyboard for comfortable and easy operation (the OK button is to confirm, the ESC button to cancel, and the arrow keys ↑↓ help with intuitive navigation).

To ensure full satisfaction, TG pro has many options that are accessed from the menu, such as:

  • the option to choose the number of measurements that are used to calculate average moisture,
  • the option to record the results of single measurements or calculated mean,
  • possibility to make modifications of readings separately for each species (the outcome of modification is seen while measurements are being taken),
  • the option to add new species remotely with special codes,
  • full regulation of display settings,
  • possibility to set the automatic switch-off time,
  • management of external temperature probes (adding, editing, deleting),
  • management of data storage (free space checks, formatting, date and time setting),
  • the option to choose the language interface
  • the option to change the temperature range,
  • and many other useful functionalities with unrestricted access.


The robust casing, made of shock-resistant ABS, metal elements and purpose-bracednon-cracking cap guarantee extreme durability.



Firmware update

There is a firmware update available (for devices with firmware older than V: 1.85) improving system stability and security of your moisture meter.

Check the firmware version of your Twist Grain Pro and update it for free here.


Available species:



  • Variety wheat 9% – 30%
  • Common wheat 9% – 30%
  • Rye 9% – 30%
  • Triticale 9% – 30%
  • Spring barley 9% – 30%
  • Oats 9% – 30%
  • Maize 10% – 25%
  • Maize 25% – 40%
  • Sorghum 6.5% – 29%
  • Millet 4% – 20%
  • Buckwheat 10% – 30%
  • Paddy rice 8.5% – 33%
  • Brown rice 8% – 25%
  • White rice 8% – 25%


  • Canola 4.5% – 25%
  • Unhusked sunflower seeds 4% – 27%
  • Flax seeds 5% – 16.5%


  • Blue lupine 7% – 30%
  • Soya 7% – 25%
  • Pea 10% – 17%
  • Horse bean 8% – 30%
  • Red beans 8% – 22%
  • Mung beans 8% – 20%
  • Chickpeas 8% – 20%


  • Cocoa 4% – 20%
  • Green Coffee Robusta 8% – 30%
  • Green Coffee Arabica 8% – 30%
  • Parchment coffee Arabica 8% – 39%
  • Dry coffee cherry 6% – 21%


  • Mustard 5% – 18%
  • White pepper 7.5% – 16%
  • Black pepper 6% – 16%


  • Peanuts 3% – 20%

The list of all available calibrations can be found in the bookmark Available species.

You can activate new species in TwistGrain Pro by using the menu option “Add species” (and you do not need to send the device to our service section).

To activate a new species, please Contact Us to get a special code. If the list does not feature a species you are looking for, we can create a new calibration.


The complete set includes:

  • DRAMINSKI TwistGrain pro moisture meter,
  • squeeze cap for the measuring chamber (with 3V CR-2032 type built-in battery),
  • transport casing,
  • belt for hanging the transport casing,
  • 4x alkaline batteries, AA type, 1.5V,
  • rubber blind stopper for USB port,
  • USB cable for PC connection,
  • transport packaging,
  • professional user manual.


Technical data

Dimensions   16.5 × 7.0 × 7.5 cm
Weight of the device
  520 g (with batteries and the tightening cap)
Way of filling the chamber   manual
Method of humidity measurement   impedance in 4 frequencies
Sample’s capacity   90 ml
Measurement control
  single system microcomputer
Power supply   4 batteries 1.5V type AA + 1 battery 3V type CR-2032
Power intake   from 30 to 72 mA w depending on the user’s settings
Approximate time of continuous operation on one battery set   77 hours when backlight is set to 0%
54 hours when backlight is set to 30%
Low battery indicator   graphic
Measurement resolution   humidity – 0.1%, temperature – 0.1°C/°F
Humidity measurement accuracy   ± 0.5 % for normalized grain
± 1 % in the range up to 10 % of humidity
± 1.5 % in the range over 10 % of humidity and can increase if the sample’s humidity increases
Temperature measurement accuracy   ± 0.5°C in the range from 0°C to 85°C / ± 0.9°F in the range from 32°F to 185°F
Temperature measurement range   from 0°C to 125°C
Correction of measurements   using the keyboard – option “modification”
Save data   internal storage
Internal memory capacity   –  50000 measurements with date and time
– 20 external temperature probes recognised automatically on the basis of ID number
– 20 language versions
– 400 species
Checking thememory status   from menu
External temperature probe   with a digital temperature sensor connected to mini-USB port
Display   graphic LCD LED backlit, diagonal 2”
Keyboard   automatically included
Temperature compensation   considered automatically
Additional functions   real time clock,
save measurements to the memory (date, time and sample number),
data transmission to PC,
preview of memory status,
preview of battery status,
temperature measurement with an external probe,
change of operating mode (basic/advanced),
modification of humidity results,
adding new species using special codes,
calculation of the average result,
automatic temperature compensation,
pop-up menu,
setting the display parameters,
selecting a language version,
selecting the temperature scale,
change of power auto off time,
update of data and software,
special software to manage the data saved on PC
(generation of reports, spreadsheets, diagrams, prints)
operating temperature
  from 10°C to 35°C
storage temperature
  from 5°C to 45°C
EAN code   5906874410172

Warranty: 3 Year.

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