Manufacturer of devices for agriculture and breeding


A moisture tester for compressed hay and straw is a modern, digital device which helps to monitor moisture and temperature level of hay and straw.
The most robust in the world!

DRAMIŃSKI S.A. with its registered office in Sząbruku, ul. W. Steffena 21,  11-036 Gietrzwałd, Poland, declares that, in accordance with the given consent, the personal data shall be processed in order to respond to an inquiry and/or to send commercial messages. You have the right to access your personal data, to request processing personal data to be ceased, to object to such processing and to request erasure. Providing access to your personal data is voluntary, but necessary to process the query.

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You need a Hay Moisture Meter to:

  • Facilitate decision making in order to prevent possible losses due to too high humidity.
  • Assess the suitability of straw and hay for long-term storage to avoid fungal growth of the stored material and to limit potential economical losses.
  • Evaluate the quality of the hay to avoid  stomach upset in animals.
  • Obtain bedding with the appropriate dryness level.
  • Avoid hay self-heating and straw self-ignition.
  • Prepare quality cattle and horse feeding material for sale.

Advantages of hay and straw moisture tester

  • The most durable device for measuring hay and straw moisture available on the market.
  • Allows for a fast reaction when conducting necessary actions to avoid risk and potential losses resulting from too high moisture level.
  • It is equipped in a transparent LCD display. An option to read the average, minimum and maximum moisture value for the inspected batch of hay or straw.
  • The device is equipped in an additional temperature measurement feature.
  • The probe is made of stainless steel which guarantees durability and resistance to corrosion. Ergonomically shaped handle helps to conduct measurements in a tightly compressed material.
  • Extremely easy to use.
  • Has an option to modify readings.


The device is available in 2 versions:

  • HMM with a probe attached with a cable to the electronic part (approx. 60 cm or 200 cm with the probe)
  • HMM with a probe permanently attached to the electronic part


The set includes:

  • DRAMINSKI HMM moisture meter or DRAMINSKI HMM FIX with a fixed measuring probe,
  • measuring probe with a connecting cable (in DRAMINSKI HMM),
  • plug to secure the probe in transport,
  • 1 x 9V 6F-22 type battery,
  • a colour transport packaging made of laminated cardboard,
  • manual.


Warranty: 36 months


See also:

Technical data

Weight in version with a cable 800 g (with battery)
Weight in version without a cable 665 g (with battery)
Lenght of the probe (in version with a cable)
56 cm, 200 cm
Lenght of the probe (in version without a cable) 54 cm
Connection cable length (only version with a cable) 140 cm
Dimensions of reader 20.0 x 8.5 x 12.0 cm
Moisture measurement method resistivity
Power supply 1 x 9 V battery, type 6F-22
Battery low indication Automatic
Power input ~4 mA
Measurement control Single chip microcomputer
Estimated working time on one battery pack about 100h
Display LCD, 3.5 digits
Keyboard membrane
Measurement resolution temperature – 1°C, moisture – 0,1%
Data modification using keyboard – Data modification option
Temperature compensation Automatic with on/off option
Moisture measuring range 10 – 80 %
Range of temperature measurement 1 – 100 °C;  33.8 – 212.0 °F
Accuracy of temperature measurement ± 1°C
Recommended storage temperature from 5°C to 45°C
EAN code 5906874410233 – version with a cable
5906874410332 – version without a cable