... .Pressure measurement Units: mmHg,kPa,cmH2O,inH2O,psiRange: 0 mmHg-400 mmHgResolution: 1 mmHg, 0.1 kPa, 1 cmH2O, 1 inH2O ... : 0 - 300 mmHg: ±0.5 % of reading ±1 mmHg 301 - 400 mmHg: ±2 % of reading 3. Pressure GenerationPressure Generator, Static Pressure ... between target pressure and actual pressure : ±10 mmHg from 100-400 mmHg with a minimum volume of 300 cc Internal leak ...