Sample is drawn into the prism chamber via tube. Single-handed operation without touching any liquid is ideal for hazardous or volatile sample measurement.
Sodium hydroxide, also known as caustic soda or lye, is often prepared as solutions at different concentrations for a number of applications.
The QR-NaOH allows the users to measure the concentrations without coming in contact with this alkali.
Just plain tap water is sufficient for cleaning and zero-setting.
