Desco 19443, Digital Static Field Meter Ionization Verification Kit Ionization Verification Kit for Measuring Offset Voltage and Discharge TimesUse to measure performance specifications of ionizers in the actual area of use. Electrostatic Field MeterMeasures static charge and polarity on objects up to ±19.99 kV at a distance of 1 inch Aluminum Conductive PlatePairs with the Desco Digital Static Field Meter to measure offset voltage and discharge times for the periodic verification of ionizers per ANSI/ESD SP3.3 and ESD TR53 ±1000V ChargerApplies charge to the conductive plate to measure discharge times of air ionizers Carrying Case IncludedPolypropylene enclosure with polyurethane foam insert to protect and store the instruments NIST Calibrated – Original Calibration Certificate can be Downloaded HereCalibrated with accepted procedures and standards traceable to the National Institute of Standards and Technology. For more information on the calibration of Desco products, see Calibration. Made in the United States of America Technical Data Sheet