Test block for humimeter FL1, FL2, FLH, BLL, BL2, WLW, BLW, SLW, RM1 and BLO.
The HM-12308 Calibration Test Block is required for use with the Stainless Steel 30 cm Insertion probe when being used on either: the FLH Humimeter - Hops Moisture Meter or FLM humimeter - Marijuana Moisture Meter. It is to be used for calibration checks.
