Technical parameters Automatic timing : 0.001~9.999sec Manual timing : Continuous quantitative perfusion、Continuous perfusion or Single-point perfusion. Precision :±0.05% External measurement : 256×210mm×70mm Weight : 2Kg Supply voltage : AC220V 50Hz Inside voltage : DC24V Minimum drip quantity : 0.005ml Input air pressure : 2.5~7 kgf/cm2(bar) Output air pressure : 0.1~5.5kgf/cm2(bar)