My Salinity monitor is currently reading about 50.0 mS (32.8PPT salinity) and the refractometer is reading about 34PPT salinity. That's a bit of a difference and I don't know why.
You are talking 1 ppt error ( 34 - 32.8 = 1.2) which is normal error as in +/- 1 ppt for the refracts and some monitors. The PinPint is less than that. Meaning, if the refract read 35ppt they actually may be somewhere between 34 - 36 ppt, which is all they guarantee.
You are talking 1 ppt error ( 34 - 32.8 = 1.2) which is normal error as in +/- 1 ppt for the refracts and some monitors. The PinPint is less than that. Meaning, if the refract read 35ppt they actually may be somewhere between 34 - 36 ppt, which is all they guarantee.