The SUNNEX SX2000 12 channel ECG, is a FDA approved product. Because it detects 12 channel cardiac data which acquired in the same time, it provides the more accurate and detailed diagnosing information than 3 or 6 channel ECG does. There are 3 operation modes of monitoring, recording and copy for user's convenience. Through the modem interface the ECG data can be transmitted directly into the fax machine in the other area for the consultation.. Another advantage is the economical maintenance fee resulted from normal fax paper usage instead of expensive ECG paper. Features Include: 12-Channel/12-Lead Interpretive EKG Easy readable A4 size chart paper 3-Year Warranty Parts & Labor Accurate diagnosis information Economical maintenance fee Normal fax paper usable with grid function