


Grain Moisture Meter – RT-640
Portable digital grain moisture meter for fast and accurate measurement of moisture (5%–30%) and temperature (-10°C to 60°C) in 8 grain species including paddy, wheat, barley, corn, rapeseed, soybean, rice, and forage.
The RT-640 Grain Moisture Meter is a high-precision digital instrument designed for quick and reliable measurement of grain moisture content and temperature. It is widely used in grain storage, food processing, quality inspection, and agricultural trading to ensure that grains are properly dried and safe for long-term storage.
This portable moisture tester can measure 8 different grain species, including paddy, wheat, barley, forage, corn, rapeseed, soybean, and rice, making it highly versatile for farmers, traders, and food processors. With a wide moisture range of 5%–30% and a temperature range of -10°C to +60°C, it provides accurate data for both field and laboratory use.
The RT-640 Grain Moisture Meter comes with advanced features such as an overflow alarm, backlight display for low-light operation, data hold function, and low-battery alert. It is powered by 3×AAA batteries and includes an auto power-off function to save energy. The ergonomic design with a separate probe makes it easy to handle, lightweight, and durable for long-term industrial use.
Key Features
Measures moisture and temperature in 8 grain species (paddy, wheat, barley, forage, corn, rapeseed, soybean, rice)
Moisture Range: 5%–30% | Temperature Range: -10°C to +60°C
Accuracy: Moisture ±(1%rh+0.5) | Temperature ±2.5°C
Resolution: Moisture 0.5% | Temperature 0.1°C/°F
Backlight display for clear reading in any environment
Data Hold Function to record stable readings
Low Battery Alert and Auto Power Off after 5 minutes of inactivity
Portable, lightweight design with a detachable probe
Applications
Grain drying and post-harvest storage monitoring
Food processing and quality inspection
Agricultural research and field testing
Warehousing and supply chain management
Trading of paddy, wheat, corn, and soybean where moisture control is critical
Product Benefits
✅ Ensures accurate grain moisture and temperature measurement
✅ Prevents storage losses due to over-drying or under-drying
✅ Improves quality control in food processing and storage
✅ Easy-to-use, portable design with backlit display for all environments
✅ Trusted tool for farmers, food processors, and traders