Refractometer for seawater and marine fishkeeping aquarium 0-100 ppt Details : This optical refractometer (salinity meter) has scales in the range of 0 - 100 ppt(0 - 10 %). The reading resolution is 1 ppt. It is designed for the measurement of seawater (marine aquaria) or very low concentrated s...

This refractometer is a portable, precision optical instrument.It's a convenient tool to check quality of honey and other high sugar related liquids.Make you know ideal time for honey harvest or maple syrup production. It features high-quality optics with ultra smooth focusing. Its main body is made...

Details: This optical refractometer is designed for measuring coolant and antifreeze based on ethylene glycol or propylene glycol ,battery fluid condition and screenwash antifreeze (windshield washer fluid) based on ethanol as well as on isopropyl alcohol. Please refer to the picture of display scal...