Dual Scale Salinity Refractometer ATC 0-100ppt (0-10%) & 1.000-1.070 Specific Gravity, Portable Meter Tester for Seawater Salt Sea Water Aquarium Brackish Reef Tank Marine



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p>Seawater or a salt (brine) Optical Refractometer designed to measure seawater (marine aquaria) or very low concentrated salt solutionsIt can be generally calibrated by fresh water but to ensure accurate salinity measurement of reef aquarium, calibrate at least once by a solution matching the refractive index of 35ppt seawater or similar solution near measurement range.

  • Checks concentration of salt water and brine or salinity in water
  • Best use in quality control in research, clinical laboratories and marine industry
  • Manage marine saltwater tank well
  • Provide safe environment for your water pets to survive and thrive in their typical marine environment


  • Auto Temperature Compensation (ATC), rest easy that your measurements are always accurate regardless of temperature variation
  • Simple calibration and operation
  • Soft rubber eyepiece for comfortable viewing
  • Uses subtle and comfortable non-slip rubberized grip, separates test solution from body heat
  • Adjustable focus, clear, large and easy-to-read result
  • Durable,built to last long
  • Approved by strict quality and safety standards


  • Range: 0-10% Salinity; 1.000-1.070g/cm3 Specific Gravity (Density), 0~100ppt Salinity)
  • Resolution: 1ppt Salinity; 0.001 g/cm3 Specific Gravity (Density)
  • Reference temperature: 20°C
  • ATC: 10-30°C
  • Weight :109g
  • Length : 205mm(8.1 inches)

Set Includes

  • 1 x Traditional Salinity Refractometer
  • 1 x English Instruction manual
  • 1 x Mini screwdriver
  • 2 x Pipettes
  • 1 x Cleaning Cloth
  • 1 x Protective Carrying Case

Range: 0-100ppt (0-10% Salinity) and Density/ Specific Gravity 1.000-1.070 1ppt Salinity and 0.001 g/cm3 Density Resolutions
Water or a salt (brine) refractometer preferred by aquarist, it checks saltwater & brine or salinity of water, best for aquariums and marine monitoring
True seawater or a salt (brine) refractometer preferred by aquarist
Calibrate simply by distilled water, comes with free screwdriver for calibration
Has automatic temperature compensation (ATC) and has built with the highest and finest quality of aluminum & rubbe