... English language.Shortcut key can change setup ofelectrocardiogram test. Single key can record automaticallySimultaneous 12 leadsLCD, 8.4 ... mVRecording modeThermal Array printingPaper specification210mm,rollLCD displayResolution 800*600 LCD,display status&waveformOutput interfaceRS-232 /USB interfaceSafety classificationIEC60601- ... ~240V T2.5A, 250VCertificate CE/ ISO13485 12 Channel ECG Machine