Salinity and ph reading a problem

[king]

I have p3 and expansion box

Both are reading salinity 100ms !

I just purchased a new conductivity salinity probe and installed this today
done calibration and it's now giving me a reading of 96ms !!!! Refractoneter gives a reading of 36 which is about 53ms - my p3 is connected to my ghl in case any one from ghl wants to access my profile to see the prob

With the ph again after claiberation and installing a new probe it's reading 10.5 as it was before

Salinity prob was not cheap to buy and want to know if it's defective

Thanks