See how our products differ in their specifications

Product comparison

Grain moisture meter with sample commpression
Moisture Meter GMDM2 Dramiński Moisture meter GMM mini Moisture meter TwistGrain pro
Weight of the device ready for operation

1530 g
Dimensions

25.0 x 16.0 x 12.0 cm

19 x 13 x 8 cm

17 × 7 × 8 cm
Display

LCD with LED backlight, diagonal 2.4″

Graphical LCD with LED backlight
2” diagonal

Graphical LCD with LED backlight
2” diagonal
Service

Membrane keyboard (durability 5 million clicks)
Method of filling the chamber

Semi-automatic, from a special dispenser
Sample volume

210 ml
Moisture measurement method

Capacity and weight
Structure of the tested sample

Whole grain

Depending on the species (whole grains, half-grains, ground, with husk, without husk, etc.)

Depending on the species (whole grains, half-grains, ground, with husk, without husk, etc.)
Destiny

Cereals, oilseeds, legumes, legumes, industrial crops, coffee

Universal (cereals, oilseeds, grasses, legumes, legumes, industrial, spices, flour and processing, vegetables, feed, etc.)

Universal (cereals, oilseeds, grasses, legumes, legumes, industrial, spices, flour and processing, vegetables, feed, etc.)
The need to periodically calibrate the device

–

–

–
Measured parameters

Moisture / temperature / bulk density

Humidity / temperature

Humidity / temperature
Measurement control

Single-chip microcomputer

Single system microcomputer

Single system microcomputer
Power supply

Li-ion cell, 3200 mAh

2 x battery AA 1.5V (LR6)

4 batteries 1.5V type AA + 1 battery 3V type CR-2032
Power consumption

From 20 to 60 mA depending on the backlight intensity setting
Operating time with backlight 0%

Approximately 150 hours of continuous operation
Operating time at 30% backlight

Approximately 100 hours of continuous operation
Charging current

1 A
Full charge time

4 h
Low battery indicator

Signalled automatically

Graphical (illustrating the current charge level)

Graphical (illustrating the current charge level)
Display resolution

Moisture – 0.1%

Temperature – 0.1 °C

Density – 0.1 kg/hl
Temperature compensation

Taken into account automatically
Humidity measurement accuracy

±0.8% up to 10.0% moisture
Above 10.0% ±0.04 of the measured value +0.4%
For corn:
±0.9% up to 10.0% moisture
Above 10.0% ±0.05 of the measured value +0.4%

+/- 0.5% in normal moisture range for standard grains by using average and calibration adjustments
Temperature measurement accuracy

±0.5 °C in the range from 0 °C to 85 °C

±0.5°C / ±0.9°F

± 0.5°C in the range from 0°C to 85°C
± 0.9°F in the range from 32°F to 185°F
Communication

USB-C, BT (Bluetooth)
Possibility of updating software and data independently

+
Possibility of printing

+ (on a dedicated printer)
Built-in weighing system

+
Tilt control

+
Calibration capability

+ (in an accredited laboratory)
Available density units

kg/hl, kg/m3, kg/l, g/cm3, kg/bu (US), oz/bu (US), oz/US gal, lb/US gal
Menu with device operation settings

+

+

+
Possibility to save results in the device's memory

+
Data management software

+
Additional product features

Inclination control system, Bluetooth LE module, real-time clock, result storage, client list creation, wireless printer, data editing for printouts, bulk density measurement, result averaging, battery status indicator, multilingual menu
Additional accessories

Dedicated wireless printer
Recommended operating temperature

From 10 °C to 35 °C
Recommended storage temperature

From 5 °C to 45 °C
Guarantee

36 months for the device,
6 months for the battery
Place of production

Poland
Producer

Dramiński S.A.

Dramiński S.A.

Dramiński S.A.
Way of filling the chamber

Dispenser with a slider

Manual
Sample’s capacity

270ml

90ml
Method of humidity measurement

Capacitive

Impedance in 4 frequencies
Power intake

from 15.2 mA to 84 mA
(depending on the intensity of the back lit)

from 30 to 72 mA w depending on the user’s settings
Approximate time of continuous operation on one battery set

“151 hours when backlight is set to 0%
70 hours when backlight is set to 30%”

77 hours when backlight is set to 0%
54 hours when backlight is set to 30%
Measurement resolution

humidity – 0.1%
temperature – 0.1°C/°F

humidity – 0.1%
temperature – 0.1°C/°F
Humidity measurement accuracy

do +/- 0,5% w normalnym zakresie wilgotności, poprzez zastosowanie średnich i kalibracyjnych korekt
Correction of measurements

+
Ability to connect an external temperature probe

–

+
Automatic temperature compensation

+

+
Automatic calculation of the average from the latest measurements

From 2 to 20 results
Depending on user settings

From 2 to 20 results
Depending on user settings
Control

Membrane keyboard
(durability of 5 million clicks)

Membrane keyboard
(durability of 5 million clicks)
Number of buttons

4

4
Connector

mini USB

mini USB
Possibility to update the software and humidity curves yourself

+

+
Saving data in internal storage

–

+
Data transmission

–

mini USB port
Software to manage the data

–

+
Internal memory capacity

40 languages
over 400 species

50 000 measurements with date and time
20 external temperature probes recognised automatically on the basis of ID number
20 language versions
400 species
Weight of the device

700g

520g
Warranty

3 lata

3 years
Set includes

– the DRAMINSKI GMM mini grain moisture meter
– rubber protection of the mini-USB port
– 2 batteries type AA, 1.5V (LR6)
– reusable transport case (made of plastic)
– special dispenser with a slider
– user manual
– USB cable to be connected to a computer

– 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
Production place

Poland

Poland
EAN code

5906874410196

5906874410172
Correction of measurements

+
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