Central monitoring system consists of 1-256 units, 1-16 patients physiology parameters and curves could be displayed simultaneously; Displayed waveforms: multi-lead ECG, PLETH, RESP, which can be overlay displayed; Monitoring parameters: HR, NIBP, PR, Dual-TEMP, SpO2, Et-CO2; Store and review at least 72 hours data and trend; English and Chinese vision While any parameter goes beyond limit set by the user, both sound and light alarm indication promptly, could store 2000 items alarm records. Patient multi-parameter analysis: NIBP, arrhythmia, ST segment, HRV analysis; Support wired, wireless LAN and can connect with MMED6000D, MMED6000DP&MMED6000RD; Remotely controls monitors through wireless web, communication distance without any barriers: no less than 200 meters; Powerful patient information management software; Thermal recorder and optional laser printer is convenient to record patient information; Easily upgraded through CD-ROM.