Salinity is the measurement of all dissolved salts in water. Salinity is one of the most tested parameters in marine aquariums. It is often the first water parameter many marine aquarium enthusiasts test for, as it is critical in creating artificial salt water. These testers have exposed temperature sensors for faster response times. An easily removable cover provides access to the battery compartment.
Automatic temperature compensation (ATC)
Graphite conductivity electrode with double pin