These precision pipettes are designed for exceptional comfort and accuracy. Lightweight and well balanced, they fit comfortably in either the right or left hand with the large digital display visible to the user. Chemically resistant, maintenance-free seals and finely polished pistons provide unsurpassed accuracy sample after sample. The continuously adjustable, digital micrometer is slightly recessed to prevent unintentional change and is protected from the effects of thermal expansion by the insulated body of the pipette. For convenience, volume can also be adjusted by turning the push-button. Ergonomically positioned, the tip ejector reduces fatigue during prolonged use. The Discover Pipettes have a universal shaft that will accept most pipette tips. The tip ejector is adjustable to accommodate various styles of tips and removable for pipetting into narrow tubes. Made from stainless steel, it will not rust, corrode or break. The Discovery Pipettes are fully autoclavable.