The Precision XS Automated Sample Processor combines a single-channel sample processing head, an eight-channel pipetting head, and an eight-channel bulk reagent dispenser in one unit. In addition to transfers using disposable pipette tips, the autoclavable and organic solvent resistant bulk reagent dispenser is available for transferring large volumes. Precision Power™ PC software simplifies application programming from hit picking to serial dilutions. Bio-Stack™ microplate stacker increases liquid handling throughput by delivering up to 30 microplates in the Precision XS platform. This system provides unattended operation, and fits into most biological safety cabinets and chemical fume hoods.