1,Monitor parameter: Tidal volume, breath frequency, MV 2,Gauge: 2 ... displayVentilation Volume: 50 ~ 1600mlVentilation Volume: 50 ~ 1600mlI:E ratio: 4:1 ~ 1:6Monitor parameter: Tidal volume, breath frequency, MVAlarm: MV high alarm ... N2O, one O2 v the anesthesia equipmet supplier ARIES 2800 with CE marked