ESD498/RT is a data-logging system used for testing and calibrating high voltage electronics. It includes a data logging software and specialized hardware modules that are compatible with a wide range of high-voltage devices. The system is designed to provide precise logging and calibration of electronic components such as transistors, resistors, capacitors, and integrated circuits (ICs). These components are usually found in power transmission and distribution equipment. The ESD498/RT system also provides convenient setup and ease of use, as well as data stability and accuracy. It is used for testing and calibration in a variety of high-voltage environments, including high-voltage laboratory, industrial, and R&D applications.