... template Thermal Recorder 210mm(w)X20m(L) Build-in SD Card Feature12 Lead ECG simultaneous acquisition,simultaneous ... display of3/6/12lead ECG waveformBuild-in real-time ananlysis software,average QRS template,RS232 ... A4 Paper),R-R historgram,trend,average QRS templateBuild-in SD CardECG-1112LECG-1112L USB port, cable port, ... -1112 packing Digital 12-channel ECG/EKG 1112L