![Neptune Systems Lab Grade Salinity/Conductivity Probe](http://aquaticsuppliesusa.com/cdn/shop/products/neptunesalinityprobe_{width}x.jpg?v=1653150022)
Neptune Systems Salinity / Conductivity Probe – Lab Grade
Start measuring salinity in your tank and get alerts when it is out of range.
- Replace an old probe
- Add salinity monitoring to your system via the Salinity Module: PM2
*Calibration solutions sold separately
Use 53.0mS calibration fluid for monitoring salinity of saltwater
Use 447mS calibration fluid for monitoring TDS of freshwater