dip and read specific gravity meters.JPG 291.5 KB · Views: 537 HemdalSalinity1.png 303.5 KB · Views: 1,425 HemdalSalinity2.png 1.3 MB · Views: 1,389 HemdalSalinity3.png 1.3 MB · Views: 1,345 HemdalSalinity4.png 1.4 MB · Views: 1,281