The Draminski GMM mini is a compact, rugged, and highly practical digital moisture meter designed for farmers, grain traders, storage operators, and agribusiness professionals. Built in Poland, this portable device delivers quick and reliable moisture and temperature measurements for a wide range of cereals, oilseeds, legumes, and other seeds. Its intuitive design, built‑in calibrations across dozens of species, and long battery life make it ideal for field work, storage quality control, and harvesting decisions.
🌾 Key Features
- Fast Moisture & Temperature Readings: Uses capacitive sensing for quick grain moisture measurement with temperature compensation.
- Wide Calibration Library: Comes with calibrations for 30+ grain and seed types (e.g., maize, wheat, rice, beans, coffee), with the option to add more.
- Easy to Use: Manual grain filling via dispenser and simple control menu make操作 straightforward.
- Clear Display: Backlit graphical LCD showing moisture %, temperature, and species name.
- Long Battery Life: Runs on two AA batteries with extended field operation.
- Portable & Durable: Lightweight, compact build with protective case and USB port for updates.
🔍 Specifications
Measurement System
- Method: Capacitive moisture measurement with automatic temperature compensation.
- Measured Parameters: Moisture content (%), grain temperature.
- Resolution: 0.1% moisture; 0.1 °C/°F temperature.
- Accuracy: Approx. ±0.5% in normal moisture ranges when averages and calibration adjustments are used.
Sample Handling
- Filling: Manual sample chamber fill with special dispenser slider.
- Sample Volume: ~270 ml.
- Species Calibrations: Default list includes 30+ types (grains, oilseeds, legumes, coffee types, etc.).
Display & Controls
- Display: Graphical LCD with LED backlight.
- Keyboard: Membrane keypad with simple navigation.
- Menu & Settings: Adjustable language, temperature units, average measurements, automatic switches, and more.
Power & Operation
- Power Source: 2 × AA batteries (1.5 V LR6).
- Battery Life: Up to ~151 hours (backlight off) or ~70 hours (moderate backlight).
- Low Battery Indicator: Graphical indicator on screen.
Physical & Environmental
- Dimensions: ~19.0 × 12.5 × 8.0 cm.
- Weight: Approx. 700 g (with batteries).
- Operating Temp: Recommended ~10 °C to 35 °C; storage ~5 °C to 45 °C.
Connectivity & Features
- USB Port: For software and calibration updates.
- Species & Software Updates: New species calibrations can be activated via USB menu codes.
Included in Set
- GMM mini moisture meter
- Rubber USB port cover
- 2 × AA batteries
- Reusable transport case
- Grain dispenser with slider
- USB cable
- User manual.