Features £º ¡ñ Small size, light weight and delicate design, very convenient to use. ¡ñ Accurate pulse pace identification function and excellent auto-interpretation function ¡ñ High accuracy digital filter, auto baseline adjustment ¡ñ 12 leads synchronously acquisition and display; Recording mode : 1ch+, 3ch, 3ch+ ¡ñ Working modes: Manual / Auto / R-R Rhythm /Storage ¡ñ 800x480 graphic, 5 inch color LCD to display detailed ECG information ¡ñ 250 cases storage and replay ( SD card is opional ) ¡ñ Built-in rechargeable Ni-MH battery supports continuous work for about 3 to 4 hours. ¡ñ 80mm*20m high resolution thermal printing ¡ñ Rs232 and USB interface ( USB disk storage,laser printer printing , PC ECG software are optional ) ¡ñ Language : English, Chinese, French, Italian, Spanish, Russian