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These scientific portable refractometers work in ambient light with no battery or other power source necessary. They can be used in labs, on production lines, in the field, or anywhere. Simply place a drop or two of sample on the prism and read the results immediately. With reasonable care their reliability, precision, and optical performance will last forever. All North Coast refractometers come complete with:

  • Rubber coated hand grip and construction which insulates the test solution from inaccuracies caused by the body heat of the user.

  • Covered eye piece and bright, clearly defined scale for easy-to-read measurements.

  • All the accessories necessary for immediate use, including calibration tools (if necessary), full instructions, transfer pipette and a protective case

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Refractometer Calibration Solution Refractometer Calibration Solution


Studies have shown that calibrating refractometers with R.O/D.I. water isn't as accurate as we thought.

North Coast Pets now offers 35ppt Refractometer Claibration Solution.

Simply place a few drops on the refractometer prism and calibrate to 35 ppt (1.0264 SG).

2 oz Bottle

Our Price: $9.99
32% Brix refractometer Brix 32% Refractometer with ATC


This unit is great for the testing of Fruits, Vegetables and Grasses, Wine or Beer makers and for the maintenance of CNC Coolants (Soluble Oils, Semi-Synthetics, Neo-Synthetics and Synthetics) and Water Soluble Drawing & Stamping Compoundsand the Electroplate industry.

Fruits, Vegetables and Grasses: This unit will help you monitor the sugar levels of your crops, plants and trees. A valuable tool to help determine if it's the right time for harvest or you need to alter your plant food. Take this item with you to your local farmer's market and buy the best quality!

Metalworking Fluids: Help maintain your coolant levels to improve finishes, extend tool life , lengthen your coolant life and save you money! Excellent for Soluble Oils, Semi-Synthetics, and Synthetics! This is the unit that is used around the world at Boeing, Airbus, Ford Motor Company, Toyota, West Coast Choppers and other manufacturer's big and small.

Beer & Wine: Use the Brix readings to get your wort sugars and help to determine your finished alcohol readings (use in conjunction with a hydrometer).

Measuring range: 0-32% Brix

Resolution Factor: 0.2% Brix

Calibration: zero calibration with water at 20°C

This unit has ATC (automatic temperature compensation) to compensate for changes in temperatures. No screwdriver needed to calibrate! Just turn the thumbscrew.

  • Refractometer
  • Pipette for sampling
  • Hard case for storage

Our Price: $59.99
90% Brix refractometer Brix 90% Refractometer with ATC


This refractometer was developed for measuring the three common indexes of honey. The three common indexes are sugar content, baume and water content. The model is suited for use with food products of high sugar content such as malt, honey, jam, marmalade, etc.

Measuring range:
  • Brix: 58-90%
  • Baume: 38-43Be
  • Water: 12-27%
  • Brix: 0.5%
  • Baume: 0.5Be'
  • Water: 1%

This unit has ATC (Automatic Temperature Compensation) for accurate measurements without recalibration after shifts in ambient working temperature.

  • Refractometer
  • Pipette for sampling
  • Hard case for storage

Our Price: $59.99
Salinity Refractometer 28% Salinity Refractometer For Salt Brine


Designed for testing the concentration of salt water and brine. Scale provides a direct reading of the concentration (%) of salt in water from 0-28%. The RHS28 proves itself invaluable for agriculture, food processing and wildlife management. This instrument is ideal for field use.

* Reads 0-28% salinity

* Accuracy: +/- 1 Division

* Divisions: 0.2%

* Sturdy design

Includes storage case

Our Price: $64.99
Salinity Refractometer Salinity Refractometer For Aquarium Use


Think about it... you have hundreds, thousands even tens of thousands of dollars invested in your marine tank, yet you probably rely on a $10 box type hydrometer to measure saliniity. Chances are, the hydrometer is not accurate, sometimes not even close. A salinity refractometer is the only way to accurately measure salinity and specific gravity. All of our salinity refractometers have ATC - Automatic Temperature Compensation: when the temperature of the product sample varies from 68°F (20°C), readings are automatically adjusted to compensate for temperature variance between 50°F to 86°F (10°C to 30°C).

Reads 0-10% salt and 1.000-1.070 specific gravity.

To check salinity- simply place 2-3 drops of tank water on the meter and look at the reading through the eyepiece.

To calibrate- place 2-3 drops of R.O. or distilled water on the meter, look through the eyepiece and turn the calibration screw until the scale reads 0.

  • Improved prism design for easier viewing

  • No screwdriver needed for calibration (thumbscrew adjustment)

  • Minimum division- 1% - 0.001 specific gravity

  • Accurate to 1 division

  • Includes storage case

Our Price: $69.99