Dispenses preset volumes from 10µL to 5mL up to 49 times from a single aspiration. Volume selection is controlled by selection of tip size and thumb-operated five-position switch. Aspirated liquids only come in contact with disposable tip, making the instrument ideal for use with viscous or aggressive liquids. Compatible with BRAND PD-Tips™ and other standard-sized syringe tips. (A) Ordering Information: Supplied with wall support, operating manual, and certificate of performance.