Designed for calibrating RH sensors, S503 Portable Humidity Calibrator includes optional battery pack for customers that need to conduct calibrations at sites without electricity. Unit can perform 3-point calibration in about 1 hr, and, when combined with chilled mirror hygrometer, offers transportable and traceable, total humidity calibration system. Providing 12 hr or more of continuous use from single charge, battery pack allows full day of calibrations to be completed on-site.
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