Hanna HI98319 Marine Salinity Tester - Waterproof ppt/PSU/S.G. for Aquariums & Seawater water testing meter How does the Black Berkey

How does the Black Berkey Primer™ work

Never Contaminated

342 ppm NaCl calibration solution

Resolution: 1 μS/cm

Hanna HI98319 Marine Salinity Tester - Waterproof ppt/PSU/S.G. for Aquariums & Seawater water testing meter How does the Black BerkeyDesigned 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 are digitally displayed on the LCD. Displays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S. G.). Comes with all the necessary solutions and batteries everything you need to get started