A Good Hydrometer

[mlpbarrett]

I am not happy with my hydrometer, it keeps reading weird when I know it's wrong.. can someone tell me what they are using?

 

[ryshark]

I dont think there is a good hydrometer. Invest in a refractometer, it is worth it. Refractometer are MUCH more accurate and reliable. I have this one and I am happy with it.
Marine Depot Aquarium Refractometer, Refractometers > Optical > Testing Equipment > Saltwater Aquarium Supplies

 

[roka64]

I agree, and I use this one:
Saltwater Aquarium Salinity & Specific Gravity Testing: Portable Refractometer

 

[Innovator]

Agreed with either a refractometer or conductivity unit.

 

[melosu58]

I use the same that Scott (Roka64) linked to. Stay away from the hydrometer and go refractometer. You`ll be glad you did.