Humidity Calibration Standard, 33%. For use with REED R6001, R6200, SD-3007, R9900 and 8706., Reed Instruments, Mfr#: R9933

Humidity Calibration Standard, Relative Humidity Accuracy +/-1 Percent at 77 Degrees F, Number of Pieces 1, Compatible Probe Diameter Up to 0.6 in, Compatible Manufacturer Model Number 8706, R6001, R6200, R9900, SD-3007, Product Type Humidity Meter Calibration Standard, Sample Humidity 33 Percent, Function Verification and Calibration of Humidity Probes