... is concision,operation is simple and convenient.2. Provides pressure gauge testing,pressure leak testing,relief valve testing functions .3. Build-in ... ,Geriatric: ±1% ±1BPMMild exercise: ±1.5% ±1BPMStrenuous exercise: ±3% ±1BPM2.Pressure measurement Units: mmHg,kPa,cmH2O,inH2O,psiRange: 0 mmHg-400 mmHgResolution ...