Features Touch-screen for easy operation 12.1 inch high resolution color TFT display USB interfaces support easy software upgrade and data transfer Compatible with Central Monitoring System(CMS) Three Working Modes: Monitoring, Surgery and Diagnosis. Simple and friendly operating display interface. Multi-display modes suitable for different applications: Standard Interface, Large font,ECG Standard Full Display ,OXY , Trend Table, BP Trend. Built-in high capacity battery up to 3 hours of continuous work VGA output for external display Technique Specification ECG Lead Mode: 5 Leads (1, II, III, AVR, AVL,AVF, V) Gain: 2.5mm/mV, 5.0mm/mV, 10mm/mV, 20mm/mV Heart Rate: 15-300 BPM (Adult);15-350 BPM (Neonatal) Resolution: 1 BPM Accuracy:±1% Sensitivity >200 uV(Peak to peak) ST measurement range: -2.0 ～+2.0 mV Accuracy: -0.8mV~+0.8m V:±0.02mV or±10%, which is greater Other Range: unspecified Sweep speed: 12.5 mm/s, 25mm/s, 50mm/s Bandwidth: Diagnostic: 0.05~130 Hz Monitor: 0.5~40 Hz