SALINITY REFRACTOMETER
Reads 0-10% salt and 1.000-1.070 specific gravity.
To check salinity- simply place 2-3 drops of tank water on the meter and look at the reading through the eyepiece.
To calibrate- place 2-3 drops of R.O. or distilled water on the meter, look through the eyepiece and turn the calibration screw until the scale reads 0.
Refractometer
Pipette
Calibration screwdriver
Hard case