Measuring Mohr pipettes have uniform graduation intervals on the transparent stem only.
With exact drop reproducibility from the tapered tip, the narrow tube devices support a controlled testing environment.
Different drawing capacity options are activated by simply squeezing the bulb.
Using the volumetric Mohr pipette, the final volume is calculated using the difference of liquid level before and after.
Since the instruments can be difficult to sterilize, disposable options are available.