It doesn't give you a Brix reading but if it's installed on your permeate line it will give you an idea if your passing sugar. I check my permeate from time to time to make sure it reads 0.00 ppm. It reads total dissolved solids.
I'm sure there's more science to it but if your permeate is at 0.0 then your not passing sugar and your RO is functioning.
If it's there then leave it on. Why not.
600 taps on vacuum
Lapierre mechanical Releaser
CDL electric releaser
2.5 x 10 CDL Venturi ( new for the 2024 season )
Home made modulating auto draw off
Homemade RO 2 x 4" membranes
CDL 16 x 16 bottler
Wesfab 7" filter press
Delaval 73 vacuum pumps
12 hives of bees