... SpO2, TEMP, PR. 12.1" large-screen color TFT display Built-in high-capacity battery, up to 4 hours working ... time 7-lead ECG waveforms display ,big fonts observational interface Reviewable ECG waveforms, Maximum ... 1, 2, 3, 4, 5, 10, 15, 30, 60, 90, 120, 180, 240,480 (Min)Measuring Period in ... about 1 Sec 12.1'''Inch Color TFT Display Multi-parameter Patient Monitor +ETCO2 New brand!!!