Humidity Calibrtn Kit 33 per RH & 75 RH

Humidity Calibration Kit Relative Humidity Accuracy +/-3 Percent Number of Pieces 2 Compatible Manufacturer Model Number 445815 Product Type Humidity Meter Calibration Kit Sample Humidity 33 Percent 75 Percent Includes 33 Percent and 75 Percent RH Salt Bottles Function Verification and Calibration of Humidity Probes