Manufacturer of devices for agriculture and breeding

system to measure moisture of hey and straw used in presses (press-trailers), easy to assemble the reader on the glass with the help of a suction cup, backlit display enables working in the dark


Hay and straw moisture measurement system used in presses (press trailers).
For grain press machines!

DRAMIŃSKI S.A. with its registered office in Olsztyn, ul. Owocowa 17, 10-860 Olsztyn, 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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To meet expectations of numerous press trailer users we created a system which allows for real-time moisture monitoring in collected materials. It enables users to control quality and has significant impact on the production profitability.


Advantages of hay and straw moisture measurement system

  • An option to independently install the device in press trailers without any equipment to measure moisture levels of the compressed material.
  • Comfortable and continuous control of moisture level in the tractor cab.
  • Easy installation of reader thanks to a suction cap to stick to glass.
  • A backlit display makes it possible to work after dusk.
  • An option to read the average, minimum and maximum moisture value (up to 50 measurements) for the inspected batch of hay or straw.
  • Has an option to modify readings.
  • Powered from the universal 12V vehicle socket.


The set includes:

  • DRAMINSKI HMM-P Moisture Meter with power cable and suction handle (type NAVI),
  • measurement probe with connection cable,
  • reusable transport packaging (made of plastic),
  • manual.


24 Months Warranty

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Technical data

Unit weight 1165 g (probe HMM-S 710 g, reader 455 g)
Cable lenght
10.0 m
Power supply cable length 1.8 m
Dimensions of reader 21.0 (with handle) x 8.5 x 8.5 cm
Moisture measurement method resistivity
Power supply 12V from the socket of vehicle
Power input About 70 mA
Measurement control Single chip microcomputer
Display LCD, 3.5 digits with LED backlight
Keyboard membrane
Measurement resolution of moisture
Data modification using keyboard – Data modification option
Moisture measuring range 10 – 80 %
Recommended storage temperature from 5°C to 45°C
EAN code 5906874410240