Salinity hydrometer by warming model wt-11

Please put it into the sea water aquatic pool slowly until water comes to the black line carved on the meter, then read it inside or outside the pool horizontally.

If there is any air bubbles on the pointer of the meter while it is putted into water. Please use the plastic stick along with the meter to make the bubbles dismissing.

The outside range of scale indicates salinity (PPT). The inside range of scale indicates gravity. The gravity range is suggested to be between 1.020~1.023 under temperature of 25°C.

After the hydrometer has been used, it should be cleaned with cleaning water. The hydrometer woukd not read correctly while any salt on the poiter. Then it should be cleaned by the way of soaking in warm water or vinegar for 30 minute at least. And then dry it in cool place.