Atago MASTER-S/Mill M

The Atago MASTER-S/Mill M is a high-quality handheld refractometer designed for the precise measurement of salinity and specific gravity in seawater. Displaying salinity in parts per mille (‰) and specific gravity on a dual-scale, this instrument is a reliable tool for aquaculture, marine research, and professional aquarium maintenance. Constructed with advanced salt-resistant materials, it is specifically built to handle the corrosive nature of salty samples, ensuring long-term optical clarity and durability.

The MASTER-S/Mill M is the ideal alternative for users who do not require water-resistant features or Automatic Temperature Compensation (ATC). It is optimized for environments where temperature stabilization is performed manually. While the "Alpha" version offers ATC and IP65 protection, the M-series provides the same world-class Atago optical precision in a more cost-effective package. Featuring an ergonomic streamlined design and a spoon-shaped tip for smooth sampling, the MASTER-S/Mill M delivers fast, meticulous results for routine seawater analysis.

Technical Specifications:

• Brand / Model: Atago MASTER-S/Mill M

• Measurement Range (Salinity): 0 to 100‰ (parts per mille)

• Measurement Range (Specific Gravity): 1.000 to 1.070

• Minimum Scale (Resolution): 1‰ / 0.001 Specific Gravity

• Temperature Compensation: Manual (User-adjusted)

• Design: Salt-resistant construction with ergonomic telescope-style grip

• Prism Tip: Spoon-shaped for easy sample application

• Standard Accessories: Daylight plate (RE-2315-61M)

• Optional Accessories: Small volume sample daylight plate (RE-2391-67M)