I am trying to figure out how to read my salinity probe that came with my new apex controller I got for Christmas. My refractometer is reading at 1.26 but my apex app is showing my salinity at 48.8. How do I read this to know if my salt level is right compared to what I have been using? Also I was trying to research readings online and this seems high is it possible I didn't calibrate it right? (I used calibration solution that came with controller)
Thanks
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