The Multipette M4, a handheld liquid dispenser, is designed to complete as many as 100 operations without refilling and to count all executed dispensing steps. It works with nine sizes of disposable pipette tips. The tips, from the Combitips advanced line, each have 20 volume settings, so the Multipette M4 can dispense volumes from 1 µL to 10 mL. Combitips rely on positive displacement rather than air cushioning to ease the handling of viscous or volatile liquids and lower the risk of contamination. With its built-in sensor, the Multipette M4 can automatically detect the Combitips and display the tip volume. A step counter displays the number of steps executed.