- The most accurate way to calibrate all types of refractometers
- Conductivity: 53.0 mS
- Salinity: 35 PPT, Specific Gravity: 1.0264
- Refractive Index: 1.3394 at 25°C
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Amzdeal Salinity Refractometer Aquarium & Seawater - Dual Scale (1.0 to 1.070 S.G.)
49.9921.99 -
Professional Automatic Temperature Compensation Sea Water Salinity Refractometer for Aquarium, Hydrometer, 0-100ppt & 1.000-1.070 Salinity Specific Gravity
25.990 -
Deepwater Aquatics ATC Refractometer for Reading Salinity
39.9923.92 -
HM Digital 1000ppm TDS Calibration Solution
13.998.24
