br Superpro Moisture Meter. The original grain moisture tester where the grain is ground and compressed. Compression and grinding is the key to the most accurate reading of water content in grain and seed. The grainis ground and compressed in one operation and this together with the automatic temperature compensation leads to the most proven reliable result.The moisture tester has local language in the display and is pre-programmed with crops. The moisture tester can always be updated with new crops.