Description:
The MD-7821 Grain Moisture Meter provides accurate measurement of both moisture content and temperature in a wide range of grains. Moreover, it serves as an essential tool for farmers, traders, and processors involved in the storage, purchasing, and handling of crops such as paddy, rice, wheat, and corn.
Key features:
- Measurement capabilities: The meter can measure both moisture content and temperature.
- Integrated probe: The single, integrated probe is suitable for one-handed operation.
- Microcomputer technology: It uses a microcomputer (CPU) to ensure accurate measurements.
- Automatic temperature compensation: The meter has an automatic environment temperature compensation function.
- Display: It features a large LCD with a backlight for easy reading, even in low light conditions.
- Low battery alarm: A built-in function alerts the user when the battery voltage is low.
- Construction: The device is designed with durable electronic components and a shell made of strong plastic, making it portable and easy to operate.
Specifications:
- Moisture measurement range: 8% to 30%.
- Temperature measurement range: -10°C to 55°C (14°F to 131°F).
- Moisture accuracy:
- $\pm$0.6% (below 14%)
- $\pm$0.8% (15–18%)
- $\pm$1% (above 18%)
- Temperature accuracy: $\pm$0.8°C.
- Resolution: 0.1 for both moisture and temperature readings.
- Power supply: 4 x 1.5V AA batteries.
- Probe length: 368 mm.
How to use:
- Select grain type: Use the grain selection function to choose the type of grain you are testing, such as paddy, rice, wheat, or corn.
- Insert probe: Push the long, two-pin probe directly into the grain batch to be measured.
- Read values: The moisture and temperature readings will be displayed on the LCD screen.
- Interpret results: In some variations, coded LED lights provide a quick visual indication of the grain’s condition (e.g., whether decay is possible).
Applications:
The MD-7821 is used for quick and accurate moisture and temperature measurement in:
- Acquisition: Checking moisture levels when buying grain.
- Storage: Monitoring grain to prevent spoilage and decay.
- Processing: Ensuring optimal moisture levels during milling and other processes.
- Allotment: Managing grain distribution.












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