The tester has the functions of automatic liquid suction, automatic liquid injection, automatic test and automatic waste liquid discharge. The volumetric titration value displays as LED digital display value. Technical parameters: Test range: 0.001%-100% Resolution: 0.01m Display mode: digital display Titration flow rate: automatic control End point delay: 10±2S Indication error: ≤2% Capacity pump capacity: 25ml Power supply: 220V/50Hz Automatic liquid suction, automatic liquid injection, automatic waste liquid discharge Weight: 6.5Kg Dimension: 42X36.5X36.5 (cm)