The Milwaukee MA887 Digital Refractometer for Seawater Measurements is an optical instrument that employs the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water or brackish inter-mediates. The digital refractometer eliminates the uncertainty associated with mechanical refractometers and is easily portable for ship, shore or home use. eamples are measured after a simple user calibration with distilled or deionized water. Within seconds, the refractive index and temperature are measured and converted into one of three popular measurement units; Practical Salinity Units (PSU), Salinity in parts per thousand(ppt), or Specific Gravity, S.G. (20/20). All conversion algorithms are based upon respected scientific publications using the physical properties of seawater (not sodium chloride). The temperature (in °C or °F) is also displayed on the large dual level display along with helpful message codes. Comes with a USA factory warranty and full support from MilwaukeePart#MA887. 
Datasheet :  [link removed]. 
Video usage on unit::  http://www.youtube.com/watch?v=WvHLgTOmHRU

Milwaukee Policy

If you are purchasing this product you agree to contact Milwaukee Instruments directly if you have any issues. This is recommended by Milwaukee Instruments to quickly address customer issues and provide their top notch customer support. Due to the complex issues of their products and vast applications they handle the tech support as they are a lot smarter than we are.

If you have any questions on:

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Customer Support Milwaukee Instruments, Inc.
2950 Business Park Drive - Rocky Mount, NC 27804 - U.S.A.
Tel.: +1.252.443.3630 - Fax: +1.252.443.1937