p>Seawater or a salt (brine) Optical Refractometer designed to measure seawater (marine aquaria) or very low concentrated salt solutions
It 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.
Applications:
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
Features:
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

Specifications
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