You have hundreds, thousands, possibly even tens of thousands of dollars invested in your marine or reef tank. Why trust your investment to a $10 plastic hydrometer that can easily be innacurate?

A salinity refractoneter is the only way to accurately measure salinity and specific gravity.

Just place 2-3 drops of tank water on the meter and look at the scale in the eyepiece.
Automatic temperature compensation.

Measures 0-100 ppt and 1.000 to 1.070 specific gravity
Minimum division - 1 ppt 0.001 specific gravity
Accurate to 1 division

ITEM NO.	DESCRIPTION
269-SRATC	Salinity Refractometer