Description 
Practical and precision 
Easy to operate 
Product Name: Grain Moisture Tester 
Model: GM640 

Parameters: 
Measuring range: 5% to 30% moisture, temperature -10°C -60°C 
Maximum error: moisture ± (1% Rh + 0.5), temperature ± 2.5°C (± 5°F) 
Resolution: 0.5% moisture, temperature 0.1°C / 0.1°F 
Operating environment: Temperature 0°C -40°C / humidity 0-85% Rh 
Grain varieties to choose 
Grain moisture test 
Grain temperature test 
Grain moisture standard setting and excessive moisture prompt 
Backlight control function 
Celsius, Fahrenheit temperature unit conversion 
Battery hold function 
Automatic shutdown without any operation for 5 minutes 
Data hold function 
Host Size: 72 * 35 * 145mm 
Probe Size: 415 * 36 * 36mm, cable length about 1 m 
Weight: Host 190.6g, Probe 208.3g 
Power Supply: 3 * 1.5V AAA batteries (not included) 
Package Size: 46 * 11.5 * 4cm

1 x Moisture Gauge Meter 
1 x Probe