... ;3. SPO2 can testing for 0.1% Weak;4. RA-LL impedance Respiration;5. Trend Coexist Display;6. OxyCRG DyNamic View Display ... ;7. UP to 4 hours working capacity of built_in rechargeable ... : Manual, Auto, STATMeasuring Interval in AUTO Mode: 1, 2, 3, 4, 5, 10, 15, 30, 60, 90, 120, 180, 240,480 (Min)Measuring ...