Waterbox Refraktometer ATI For multiple tests it is

For multiple tests it is best to use Alkatronic

continuous mode

The most popular saltwater LEDs in the world

Also suitable for invertebrates

Waterbox Refraktometer ATI For multiple tests it isThe Waterbox Refractometer is used to test the concentration of salt water. Its triple scale provides a direct reading of the specific gravity and concentration (parts per thousand) of salt in water. It provides reliable refractive index and salinity measurements of the total dissolved solids of aqueous solutions. The Waterbox Aquariums Refractometer is ideal for measuring salinity in saltwater aquariums. Whether you're monitoring the salinity of your