Power Supply: AC 220V/110V 50Hz/60Hz,DC 3V±1.2V

Ambient temperature: 5­-40°C

VC Test Range: 0-9999ml

Max. Ventilation Volume: 0-200L/min 

Accuracy: ±5% F.S

VC in First Second: 0-5L

VT: 0.1-2L

Digital display: Yes