The HG 2320 ESD is suitable for use in electrostatic protected areas (EPA). ESD (electrostatic discharge) is the transfer of an electric charge that takes place when two objects that have been charged to different electric potentials, or have different electric potentials due to static induction, are brought into contact with each other. This discharge can cause product defects as well as equipment failures, but the HG 2320 ESD has a conductive housing that will not build up or hold a static charge when used in EPA. Combined with all the features of the HG 2320 E, such as precision temperature control, the LOC feature and customizable programs, this is the ultimate ESD-safe tool.