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 salt solutions. The second scale is for reading of the salt solution density in range 1.000 to 1.070 g/cm3 (resolution 0.001 g/cm3).

Refractometer for seawater and marine fishkeeping aquarium 0-100 ppt
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 salt solutions.
The second scale is for reading of the salt solution density in range 1.000 to 1.070 g/cm³ (resolution 0.001 g/cm³).

Measurement
The liquid measurement is very easy. Place a few drops of the liquid on the optical part of the refractometer, cover the prism (the liquid will spread more easily over the prism), look throught the eyepiece against the light (focus, if necessary) and you will be able to read the result value on the scale.
General technical parameters
· reference temperature 20 °C
· ATC - automatic temperature compensation (compensation range 0 ~ 30 °C)
· focus possibility
· length ~ 175 mm
· quality technical design
Content and equipment
· a firm plastic case
· a refractometer
· a cleaning cloth
· a suction tube
· a screw driver
· operating instructions