Milwaukee MA887 – Digital Salinity Refractometer

Milwaukee MA887 is a high-quality digital refractometer, specially designed for precise measurement of salinity in seawater and artificial seawater. Combining precision, speed and ease of use, this instrument is ideal for aquarists, aquaculture professionals and laboratories.

Key features:

• Three measurement scales:

  • PSU (Practical Salinity Units): 0 to 50

  • ppt (parts per thousand): 0 to 150

  • S.G. (Specific Gravity): 1.000 to 1.114 (20/20)

• Temperature range: 0 to 80°C (32 to 176°F)

• Resolution:

  • 1 PSU / 1 ppt / 0.001 S.G.

  • 0.1°C / 0.1°F

• Accuracy:

  • ±2 PSU / ±2 ppt / ±0.002 S.G.

  • ±0.3°C / ±0.5°F

• Measurement time: approximately 1.5 seconds

• Minimum sample volume: 100 µL

• Automatic temperature compensation (ATC): between 10 and 40°C

• Display: two-level LCD screen

• Light source: yellow LED

• Housing material: ABS plastic

• Power supply: 1 x 9V battery (included)

• Battery life: up to 5000 measurements

• Automatic shut-off: after 3 minutes of inactivity

• Protection rating: IP65 – protection against dust and water jets

• Dimensions: 192 x 102 x 67 mm

• Weight: 0.42 kg

• Fast and accurate results: you get measurements in less than 2 seconds

• Easy to use: only a small sample drop is required

• Automatic calibration: with distilled or deionised water

• Durable design: easy to clean, with a stainless-steel ring and glass prism

• Portability: compact and lightweight, ideal for field and laboratory conditions​

Applications:

• Aquariums – maintaining optimal conditions in marine aquariums

• Aquaculture – monitoring salinity in fish farms

• Laboratories – analysis of seawater and artificial seawater

• Educational institutions – training and demonstrations