Results are reported from a study of two electrical moisture meters adaptable to bulk textile materials. Calibration curves at a single temperature are reported on white, scoured, wool yarns. Accuracy of the meters is dependent upon a calibration against an independent measurement of moisture. A modification of the loss-in-weight oven method was used as reference. Precision for both ovens and meters is based upon statistical analysis of groups of data. For instruments, in the best cases, the value was approximately 0.25 percent with the ovens at 0.40 percent moisture, both figures based upon two-sigma limits, sampling variance having been removed.