Designed to bring simplicity to salinity testing, the HI98319 Marine Salinity Tester measures conductivity (EC) to determine the salinity of natural and artificial seawater. Within seconds, the salinity and temperature...
The re-designed deep six hydrometer with improved calibration and bubble diffuser ensures more accurate readings of your aquarium salt levels. Also includes a built in base so you can rest...
Milwaukee Instruments MA887 Digital Seawater Refractometer The Milwaukee MA887 Seawater Digital Refractometer provides the highest accuracy possible for the measurement of seawater in 3 specific scales. Each scale is temperature...
