Hanna Instruments Marine Salinity Tester HI98319 Package Set Each sealed sachet holds just

Each sealed sachet holds just the right amount of solution making every sachet as fresh as the day it was packaged

The open junction is more resistant to clogging when the probe is inserted into solids and semisolids than pH electrodes that use ceramic or other porous materials

IP67 waterproof and floating design

Usage instruction: Spray on targeted pests until well and fully covered

Hanna Instruments Marine Salinity Tester HI98319 Package Set Each sealed sachet holds justHI98319 is a digital salinity tester designed specifically for saltwater aquariums and displays results in parts per thousand (ppt) Practical Salinity Units (PSU), or specify gravity (S. G.). This waterproof tester uses an amperometric conductivity probe to determine the salt content in the water. This robust tester displays the readings along with temperature on a large LCD. The rugged waterproof tester is only 0. 7" thick and extremely ergonomic,