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Atago 2481 Master-S28α Handheld Salinity Refractometer (0-28% NaCl)

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Handheld refractometer measuring salinity at 0.0%-28.0% NaCl range with ±0.2% accuracy. Temperature-compensated, metal body, delivers fast results with just 2-3 drops of sample.

  • 0.0% - 28.0% NaCl measurement range
  • ±0.2% measurement accuracy, 0.2% resolution
  • Automatic temperature compensation (10-30°C)
  • Metal body, durable construction
  • IP65 protection
  • Only 2-3 drops of sample required

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The Atago 2481 Master-S28α is an optical handheld refractometer designed to measure salinity (NaCl concentration) in food, water, and seawater applications. With a wide measurement range of 0.0%-28.0% NaCl and ±0.2% accuracy, it provides reliable results in both industrial and laboratory environments.

The instrument delivers accurate measurements across 10-30°C ambient temperature range via automatic temperature compensation, eliminating the need for manual adjustments. The metal body construction ensures long-term durability in field and laboratory settings. Measurement is straightforward: apply sample drops to the prism, hold to light, and read the salt concentration directly from the scale—no additional sample preparation required.

With minimal maintenance needs, rapid measurement speed, and portable design, this refractometer serves a broad user base from food production facilities to aquarium and water analysis laboratories.

Technical Specifications

Manufacturer Atago
Model Master-S28α
Catalog No. 2481
Measurement Scale Salt (NaCl)
Measurement Range 0.0% – 28.0% NaCl
Measurement Accuracy ±0.2%
Resolution 0.2%
Temperature Compensation Yes
Ambient Temperature 10-30°C
IP Protection IP65
Housing Metal
Dimensions & Weight 3.2(W) x 3.4(D) x 16.8(H) mm, 130g

Applications

  • Salinity quality control in food laboratories
  • Salt concentration measurement in water and salt industries
  • Seawater and aquarium water quality monitoring

Frequently Asked Questions

What is the measurement range of the Master-S28α?
It measures in the range of 0.0% – 28.0% NaCl with an accuracy of ±0.2%.
How much sample is required for measurement?
Only 2-3 drops of sample applied to the prism are sufficient for measurement.
Does temperature variation affect the measurement?
The instrument features automatic temperature compensation; it delivers accurate results across the 10-30°C ambient temperature range.