*Ambient Temperature: -40°C~+55°C*Humidity: ≤95%*Max Flow: 60L/min or 80L/min *Accuracy: ±0.30%*Repeating Accuracy: ≤0.15%*Inlet Vacuum: ≥54kPa*Outlet Vacuum: ≤0.3MPa*Power: AC110V±20%, AC220V±20% √, AC380V±20% (50Hz)*Noise: ≤70dB(A class)*Unit price range: 0~9999*Single range:0~9999*Accumulative range: 0~99999999