Carry out longer, fatigue-free pipetting with the Thermo Scientific™ S1 Pipette Fillers. These instruments are ergonomically designed and offer simple, efficient pipetting performance, as well as maximum pipetting comfort. Lightweight and cordless, they feature a heavy-duty rechargeable lithium-ion battery that allows approximately three times longer operation between charges than typical units. For use with graduated and volumetric glass and plastic serological pipets.