Seawater Specific Gravimeter/Salinity Refractometer : GMK-500/510
USES
With checking out the specific gravity or the salt density of seawater accurately and quickly, * To control the environment of raising fishes, shellfishes & etc. * To investigate the fishing places. * To research the water quality of sea.
FEATURES
1. Useful for measuring the specific gravity or the salt density of seawater. 2. Easy to use, quick to read and compact. 3. Using the phenomenon of light refraction. 4. Calibration by distilled water. 5. Automatic temperature compensation. 6. Low battery sign appears.
SPECIFICATIONS
GMK-500 GMK-510 1. Measuring Range 1.000~1.070 0~1000/00 (PER-MILL) 2. Accuracy +/-0.002% +/-20/00 3. Resolution 0.001 10/00 4. Display  Digital LCD 5. Operating Temperature 5˚C~40˚C 6. Power Source Battery 9V x 1EA 7. Dimensions 154(L)×108(W)×43(H)mm 8. Gross Weight Approx. 1Kg