Delmhorst MCS-4 - Calibration Standard 16%/22% - Hay
This moisture content standard is great for verifying that your F-series hay moisture meter is in calibration. With two electrical resistance values (16% and 22%) to test your meter against, you can be sure that your readings will stand up to the strictest standards of accuracy. The MCS-4 is also available with a letter of certification traceable to NIST.