The is a portable, rugged, and easy‑to‑use instrument designed for accurate measurement of moisture content and temperature in grain sacks and bulk stored grains such as rice, wheat, barley, corn, soybeans, fodder, and more.
Ideal for farmers, grain traders, storage operators, and quality control technicians, this digital moisture meter helps ensure grains are at ideal moisture levels before sale, storage, or processing. It combines a clear backlit LCD display with dual pins for deep penetration into grain masses, giving fast, reliable results on both moisture percentage and grain temperature.
With multiple practical functions—such as grain species selection, moisture standard setting, over‑moisture alerts, automatic shut‑off, and data hold—the GM‑640 is a versatile tool that enhances decision making during grain handling operations.
⭐ Key Features
· 📊 Dual Measurement: Simultaneously measures moisture content and temperature of grains.
· 💡 Backlit LCD Display: Easy reading in low‑light environments.
· 🌾 Multi‑Grain Support: Suitable for common grains—including rice, wheat, barley, corn, fodder, rapeseed, and soybean.
· ⚠️ Moisture Standards & Alerts: Allows setting moisture thresholds with visual/audio over‑moisture indication.
· 🔄 Temperature Conversion: Switchable between Celsius and Fahrenheit.
· 🔌 Auto Power Off: Saves battery by switching off automatically after inactivity.
· 📌 Data Hold & Low Battery Warning: Retains last reading and alerts when batteries are low.
· 🔋 Portable & Durable: Lightweight design for field or warehouse use.
⚙️ Specifications
|
Parameter |
Specification |
|
Model |
GM‑640 Digital Grain Moisture Meter |
|
Moisture Measuring Range |
5% – 30% |
|
Moisture Resolution |
0.5% |
|
Moisture Accuracy |
±(1%RH + 0.5) |
|
Temperature Range |
-10°C – 60°C (14°F – 140°F) |
|
Temperature Resolution |
0.1°C / 0.1°F |
|
Temperature Accuracy |
±2.5°C (±5°F) |
|
Operating Temp. |
0°C – 40°C (32°F – 104°F) |
|
Operating Humidity |
0% – 85% RH |
|
Display |
LCD with backlight |
|
Power Supply |
3 × 1.5V AAA batteries (not included) |
|
Auto Off |
Yes (after ~5 min inactivity) |
|
Dimensions (Meter) |
Approx. 72 × 35 × 145 mm |
|
Probe Length |
Approx. 415 × 36 × 36 mm |
|
Weight |
Approx. 500–550 g (varies by source) |
|
Grain Types Supported |
Rice, wheat, barley, corn, soybean, rapeseed, fodder, etc. |