Conductivity 53mS calibration fluid
Calibration fluid for conductivity electrode. For use with the PM2 and seawater ….
This calibration fluid is intended to calibrate the conductivity electrode for use in seawater. If you want to monitor the salinity of your water, you need this 53ms liquid.
Do you want to monitor the quality of your osmosis water? Then you need the 447 mS liquid!