Description: A603/A603B is a portable and high quality 3-channel ECG, which offer not only normal thermal printing but also external printing solution. It can used in hosipital. Clinic and emergencyies. A603: 4.3 inch color TFT LCD A603B: 5.7 inch color TFT LCD Product Description Features ? 3 channel ECG machine with automatic interpretation ? Manual/Auto working Modes ? Simultaneous 12 leads acquisition and 3-ch recording with high resolution thermal printer. ? 4.3/5.7 inch Color TFT LCD display ECG wave and friendly menu setting. l Support touch panel and keypad input ways l Large ECG recordings storage capacity and support SD card storage. l 120 seconds ECG wave freeze and replay function. l Measurement and interpretation results preview in LCD for selectable printing. l Lead-off detection and alert l Digital filtering, resisting baseline drift, AC and EMG interference ? Built in USB/RS232 interface. l Data transmitting to PC via LAN ? Built in rechargeable Li-ion battery support less than 3 hours continuously work. ? AC power supply at 90-240V@50/60Hz