[Resun] Hydrometer Salinity Tester

Measure Salinity for Freshwater / Goldfish / Brackish / Marine Aquarium.

Makes measurement of salinity / salt levels in your aquarium fast and easy. Just fill with aquarium water and read the levels. 

Features:

• Patented design with filter sponge at the inlet to efficiently eliminate the dirt in marine water
• Patented water channel to avoid bubbles from attaching to the pointer to improve the accuracy
• The inlet is lower than the outlet to facilitate taking water from the tank

Specifications:

Specific Gravity of 1.000 - 1.032.