The Benchmark Scientific P7700-S2 Macro starter set comes with 4 Accuris NextPette Pipettes. These Pipettes are designed for laboratory research use, and specifically for the measurement and transfer of aqueous solutions. The NextPette pipettes offer variable volume setting, and are available in different ranges to cover volume measurements from 0.1 ul (P7700-1) to 10 ml (P7700-10M).

NextPette pipettors utilize the principle of air displacement. A vacuum is created by the plunger movement, and a precise volume of sample liquid is drawn into the attached pipette tip. Disposable pipet tips must always be used for liquid aspiration, and the shafts of the NextPette pipettes are designed to accept a wide range of different brands and styles of disposable pipette tips. The P7700-S2 comes with 4 variable volume pipettes: the P7700-200, P7700-1000, P7700-5M, and P7700-10M as well as a carousel to hold them.

Proper operation and proper use of disposable tips will prevent liquid samples from entering the pipette and contaminating the internal parts.

Each variable volume NextPette incorporates a 4-digit counter display to show the set volume. The volume setting can be changed using the volume adjustment dial below the push button. A volume adjustment lock is located just below the tip ejector button, and this allows the user to securely lock the adjustment dial at the appropriately set volume.