Features:
Fit for brackish and marine aquariums. Perfect for testing both salinity and specific gravity of your brackish and marine tank.

Specification:
Material:Plastic
Color:Clear,Black
Net Weight:132g
Total Size:120 x 89 x 15mm/4.72" x 3.5" x 0.59"(L*W*H)

Package Includes:
2 x Salinity Tester

Note:
Instructiins for use:
1. Fill slowly to level line bydipping below water surface. Avoid turbulence which may cause air bubbles to attach to pointer.
2. Air bubbles which are attac-hed to pointer must be dislodged to obtain accurate reading. After filling hydrometer with water sample, gently tap pointer with a pencil to dislodge any bubbles that may remain on pointer.
3. Read specific gravity on inside scale, any salinity in parts per thousand(ppt) on outside scale. Be certain that water surface is parallel tolevel line. For most marine aquariums, recommended specific gravity should be 1.020 to 1.023
4. Rinsse with fresh water after use.