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.
This model is specifically designed for measuring sulfuric acid, which makes it ideal for a wide-range of applications in the industrial or pharmaceutical industries.
The QR-HSO allows users to easily measure the concentration of sulfuric acid without coming in contact with this highly corrosive acid.
Cleaning and zero-setting can be done with tap water.