Founded in 1994, Shanxi XieliPhoto Electric Instrument Co., Ltd. is a manufacturer specialized in “XIELI” (or Enterprise Standard) series digital meters with over ten years experience in the their manufacturing. It produces more than 150 kinds of 3 1/2-digit, 4 1/2-digit and 5-digit digital display meter products for general and special purposes used in measuring measurable AC, VDC, current, power, power factor, rotary speed, temperature, counting and frequency, etc. with AC and DC power supply. The company is the supplier designated by some well-known international enterprises. In 2001, it passed "ISO9001 Quality Management System” and obtained “CE” authentication as first one in China in the same year.