Manufacturer of devices for agriculture and breeding

Draminski HMM moisture meter for hay and srtaw, world's number 1 in category price-quality, fast espitamion of grain moisture content on the field or in a place of its storage


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

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


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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