The Wheaton UniSpense® microprocessor controlled dispenser with standard pump head is an alternative to hand pipetting. This peristaltic pump fills bottles, vials and other containers. For automatic operation, a variable delay 0.5 to 60 sec can be set between doses. The single speed peristaltic pump can dispense liquids ranging in viscosity from aqueous solutions to medium syrups with accuracy to ±1% at mid-range. Records the number of doses to form a ready reference. An audible signal at the end of the filling cycle eliminates the need for visual monitoring. Delivery range, upto 5000mL (with optional 8mm I.D. tubing). UniSpense® microprocessor controlled dispensers with standard pump head are complete with 3mm and 6mm Silicone tubing assemblies, 5 ft. long. 33 L x 24.1 W x 16.5cm D. 110VAC. 60Hz. 140w. 0.25 to 150mL (2mm I.D. Tubing), 1 to 900mL (3mm I.D. Tubing), 2.5 to 3000mL (6mm I.D. Tubing), 4 to 5000mL (8mm I.D. Tubing) Filling Range. 0.45mL/sec (2mm I.D. Tubing) 2mL/sec (3mm I.D. Tubing), 9mL/sec (6mm I.D. Tubing), 18mL/sec (8mm I.D. Tubing) Flow Rate. 0.5 to 25 sec in Automatic Mode Delay Time. Wheaton #: 374301.