Direct probe connection
Automatic Temperature Compensation
The Primo series of testers provide a fast and dependable way to measure the total dissolved solids or conductivity in your water samples. It...
High Accuracy Seawater Refractometer!
Red Sea’s Seawater Refractometer offers exceptional accuracy, for measuring the absolute salinity of seawater at a temperature of 25°C/77°F.
Most refractometers used within the aquariu...