Jiangmen Leader Information Technology Co., Ltd is a high-tech enterprise, which located in Jiangmen City, Guangdong province, China. We dedicate to research、development、produce and sell intelligent apparatus，dummy apparatus and network apparatus。A series new products including intelligent apparatus and meter which use DSP and proprietary circuit have been produced。The apparatus interior possesses intelligent software with strong processing ability. The data can be intelligently analyzed and processed , the number can be shown and transmitted through the apparatus。It can be used to self-examine、self-diagnose、self-test、self-repair、self-adapt、self-adjust、self-study， it is new-pattern apparatus using digital technology to take place of the imitated meter.