Features：With auto-interpretation function; can assist doctor to diagnose; Color LCD makes the images more clear for guaranteeing the reliability of the images ; Designed with technology of Digital Signal Processing and Digital Isolation; Synchronously 12 lead acquisition and printing 3 live leads record of them,Using high resolution thermal roll paper for recording ECG waveform, Multiple optional digital filter ( including baseline drift filter ),using auto-regulation baseline drift filter which can inhibit any baseline drift ,or curb caused by patient's movement and auto- optimize the position for printing; Auto measurement / analysis system shows the real-time heart rate which makes it easier fordoctor's diagnosis; Can store maximum of 128 patients' ECG data and enable user to replay data analyze and print itfrom database; High-speed USB interface and traditional RS-232 interface are both built–in for communicatingwith computer as well as other devices; Data can be received through one of the interfaces and displayed by the software which is alsoprovided by our company (optional); Specifications:LCD display: 640×480  TFT  5.7 inch graphic LCD Lead: standard 12 leads Sampling method: 12 leads synchronously acquisition CMRR: >80dB, > 100dB  (with AC filter) Sensitivity: AUTO;2.5; 5; 10; 20 mm / mV Paper speed: 6.25; 12.5; 25; 50 mm / s( ± 3%) Paper size: 80mm x 30m roll type Recording mode: Thermal Array printing Power supply: AC: 110-230V (±10%) , 50/60 Hz±1Hz; 40 VA                           DC: 14.4V rechargeable Li-ion battery