EST complies international organization ISO/IEC17025,At present, EST has the testing site of over 5,000 square meters, with standard 3M semi-range anechoic chamber and 3M full-range anechoic chamber (fully in conformity with the requirements of CISPR16-1 and ANSIC63.4), many shielded chambers (for conduction and EN55020 testing), anti-jamming laboratory, and commodious safety laboratory. The testing equipments are advanced and excellent, which are manufactured by R&S in Germany, HAEFELY in Switzerland, and Shimadzu in Japan.