Detects, counts and measures ESD events that can damage ESD items and cause tool lock-ups, erratic behavior and parametric errorsCalculates event magnitude for Charged Device Model (CDM), Human Body Model (HBM) and Machine Model (MM)Records all measurements to a microSD card for PC downloadTouchscreen display provides intuitive user interfaceRechargeable lithium ion batteryAssembled in the United States of America with Globally Sourced Materials U.S. Patents 6, 563, 319; 6, 762, 607; 7, 525, 316; 7, 795, 875