- Four ranges to choose from, depending on preferred units for measuring salinity
- Large LCD screen, for readability
- Waterproof, for both indoor and outdoor use
- Automatic temperature compensation (ATC), to eliminate need for extra calculations
- Auto-off, to prolong battery life
Hanna Instruments HI 96821 Brix Refractometer for Measuring Sodium Chloride in Food
|Price:||$157.21 ($157.21 / Each) & FREE Shipping. Details|
|You Save:||$39.99 (20%)|
Specifications for this item
|Brand Name||Hanna Instruments|
|Part Number||HI 96821|
|Number of Items||1|
|Inside Depth||19.2 inches|
|Item Weight||14.88 ounces|
|Measurement Type||Salinity , Temperature|
The Hanna Instruments HI 96821 brix refractometer is a portable meter for measuring salinity ... See more product details
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The Hanna Instruments HI 96821 brix refractometer is a portable meter for measuring salinity levels in food preparations.
The HI 96821 measures salt content in aqueous food solutions, with results available within seconds. To take a reading, the sample well must be calibrated with distilled or deionized water, followed by a few drops of the sample liquid. A dual-level LCD screen displays the measurement and temperature within several seconds. The HI 96821 converts the refractive index of the sample to one of four popular units for measuring salinity: g/100 g, g/100 mL, Specific Gravity, and degrees Baumé.
The 9V battery operated device utilizes a yellow LED as a light source, and automatically powers off after three minutes of non-use. The HI 96821 has a range of 0 to 28 g/100 mL, 0 to 34 g/100 mL, 1.000 to 1.216 specific gravity, or 0 to 26 degrees Baumé. Temperature compensation is automatic between 10 and 40 degrees C (50 to 104 degrees F).
Refractometers measure refractive index, which is the optical characteristic of a substance and the number of dissolved particles in it. Refractive index is the ratio of the speed of light in empty space to the speed of light in the substance. Refractometers can be used to ensure proper salinity levels in aqueous solutions.
Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents, and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including a pH electrode with a built-in temperature sensor, an electronic pocket-sized pH tester, and a replaceable electrode pH pocket tester. To assure the quality of its products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.
What’s in the Box?
- One 9V battery
Top Customer Reviews
After doing some tests with it, I have mixed feelings about it. That is not to say it's not a good item, but it's not entirely clear what it can be used for accurately. I've tried to do a lot of research on it online first, but the results have been inconclusive... many sites and a few postings asking the same question I do, but no definite answers.
I am going to suggest an answer here, based on those results I am getting from the testing apparatus. It makes me wonder if it can only be used on clear liquids, and, even more unsure whether they have to be colorless liquids or not. (Edit: after another few tests the colors do seem to be less of a problem than the obscurity of the liquid).
The benchmark test was EXACT... the unit performed perfectly upon reading 10g salt per 100g of water when I mixed it up myself (as the instruction book suggested). This makes me think the unit works perfectly... for its design, but possibly only for a narrow set of applications?
I am puzzled because I get crazy crazy results for cloudy and possibly for colored liquids. Milk consistently reads 11.5 and natural (clouded) cranberry juice... 35 ! The juice is supposed to be 1/4 the salt content of the milk... and even the milk reading is too high.
All this leads me to believe this unit may have quite limited usefulness for me.Read more ›