The CoralVue Hydros Salinity Kit lets you monitor salinity in a marine aquarium. It includes a K-10 conductivity probe along with the calibration solutions you need to set it up for accurate readings.
K-10 high range conductivity probe
28 ppt calibration solution, 100 mL
35 ppt calibration solution, 100 mL
BNC connection, 3 ft cable
Probe size: 12 x 145 mm, POM housing
Connect the probe to the BNC socket on your Hydros controller and calibrate it with the included solutions.