AgraTronix MT-PRO [08125] 40 Different Grain Scale Grain Moisture Meter. Multi-Grain, Multi-Language with Dual Calibration. The MT-PRO main menu allows the user to customize the tester to his own operation by selecting from 39 grain scales and 7 languages (English is the default). The MT-PRO now features 2 simple methods for adjusting grain moisture calibration using Easy Single-Point or Precision Multi-Point™.