Yosoo123 Accurate Automatic Hydrometer SaltSalinity Meter Salinimeter for Fish Tank (Square Type)
- Insert the gravity into the tank or the fish pond below 15 cm until thespills the plate. (slowly fillingto prevent bubbles attached to the pointer).
- When thereaches the full state (and the top level of the baffle), take out the hydrometer and place it on a horizontal surface..
- The air bubbles attached to the needle will lead to inaccurate reading, carefully pending the gravimeter to shock the adherent bubbles..
- Read the specific gravity according to the inner scale, and read out the salinity (PPT) according to the outside scale. We recommend that the seadensity of the seafood pool is between 1.020-1.023, that is the safety line..
- It is easy to read and thecan be + (-) 0.001 units of specific gravity. Professional design make it able to get accurate reading when the temperature of theis at 18 degrees -28 degrees.