E-test是一个å¯ä»¥å®žæ—¶æŸ¥çœ‹ç”µèƒ½è¡¨è¿è¡Œçжæ€çš„APP,用曲线形å¼è®°å½•电压电æµåŠŸçŽ‡çš„çŠ¶æ€ç‰ã€‚ E-test is an APP that can view the running status of the energy meter in real time and records the state of voltage and current power in a curve form.