The HI900100 dosing pump can be used to provide an additional or replacement pump for either the HI901, HI902C, or HI903 automatic titration systems. With a simple one-step connection from the titrator cable to the pump connector, the HI900100 is ready to use. This 40, 000 step piston dosing pump operates with a low backlash screw drive to precisely deliver titrant or reagent into a sample. The dosing pump is able to support each of the four burette sizes Hanna offers: 5 mL, 10 mL, 25 mL, and 50 mL. With ±0.1% full burette volume accuracy, the HI900100 is fully capable of dosing extremely small volumes, ensuring high accuracy titration results.