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HANNA‘s HI 96822 Digital Refractometer is a rugged portable, water resistant device that utilizes the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water or brackish intermediates. The HI 96822 benefits from HANNA‘s years of experience as a manufacturer of analytical instruments. This digital refractometer eliminates the uncertainty associated with mechanical refractometers and is rugged and portable enough to be used at home, in the lab and out in the field.
The HI 96822 is an optical device that is quick and easy to use. After a simple user calibration with steam-distilled water (do not use RO or RO/DI water for calibration), a seawater sample can be introduced into the sample well.
Within seconds, the refractive index and temperature are measured and converted into one of 3 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).
Temperature (in °C or °F) is displayed simultaneously with the measurement on the large dual level display along with icons for Low Power and other helpful message codes.
Manufacturer Info
Hanna Instruments USA Aquarium Supplies Hanna Instruments is a leading manufacturer of analytical aquarium instrumentation. They were founded in 1978 and are headquartered in Woonsocket, Rhode Island. When Hanna introduced pH Electronic Paper in 1986 it literally revolutionized the world of testing by allowing millions of people in various industries to test for pH in a simple, accurate and affordable way. Hanna employees are constantly challenging themselves to improve on existing technology and to invent new testing techniques with the common goal to simplify analytical testing. This applies not only to instrumentation, but also to sensors development, reagents and chemicals. Hanna also believes in controlling the quality of their products from inception to delivery so they manufacture everything themselves, from meters and electrodes to chemical reagents and buffer solutions.
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I received the unit last week. Packaged very nicely, and safely. When I first used it after an almost nothing calibration, it quickly gave me the 3 reading from the same sample by simply pressing a button. Accuracy is spot on. I checked using different brand tests to see, but this one is so simple! ...Read More
I received the unit last week. Packaged very nicely, and safely. When I first used it after an almost nothing calibration, it quickly gave me the 3 reading from the same sample by simply pressing a button. Accuracy is spot on. I checked using different brand tests to see, but this one is so simple! Couple of drops of tank water, and bingo! Definitely recommend this, along with the other Hanna checkers I got as well.Hide
I really wrote a review however if your like me hate using and calibrating a refractometer , then this is a must have , it takes the guess work out and is spot on , just make sure you rinse it off after each use cause if you let old salt water dry on it when you go to do a reading of your take on fu...Read More
I really wrote a review however if your like me hate using and calibrating a refractometer , then this is a must have , it takes the guess work out and is spot on , just make sure you rinse it off after each use cause if you let old salt water dry on it when you go to do a reading of your take on future the old salt creep will throw off your reading so always rinse offHide
Been using this refractometer just over a month and love it. It's super simple to use. I used the old manual refractometer for many years just feel this unit provides a more accurate reading
I started with a hydrometer and then moved up to a refractometer, but I was still uncertain about whether I was reading the scale correctly since the line between white and blue was somewhat of a gradient. After my first week with this digital refractometer, I am 100% pleased. I tested it against t...Read More
I started with a hydrometer and then moved up to a refractometer, but I was still uncertain about whether I was reading the scale correctly since the line between white and blue was somewhat of a gradient. After my first week with this digital refractometer, I am 100% pleased. I tested it against two 35ppt calibration solutions several times over the past week and every time it has been dead on. The readings are so simple it was convenient to use to test my acclimation process for a new fish. I took samples of the fish water until it was the same salinity as the display tank: very easy with very little hassle.Hide
Good - it gives the same reading every time. Consistent...
Bad - it has accuracy of +|-.003. It read 1.021 on my reef aquarium which was really 1.024. I contacted Hanna and they informed me that it is within margin of error. Well .003 matters in a sps tank.
Most orders under $29 ship for only $2.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in up to 7 business days after it ships out.
free shipping for orders $29+
We ship 99% of the products we carry for free within the contiguous United States using a mix of economy methods including USPS First Class Mail, SurePost and UPS Ground. Your order will arrive in up to 7 business days. Just spend $29 or more!
free faster shipping for orders $250+
Over 90% of shoppers receive their orders within 1-2 business days. Upgrade from free economy shipping to faster shipping for only $2.99—or spend $250 and we'll upgrade you automatically!
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Same-day shipping is available Monday-Friday for most products—place your order by 10:30 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.
live plants, live foods, and frozen foods delivered to your door
We ship live plants, live foods, and frozen foods within the contiguous United States. Each of these categories is subject to its own $19.99 flat-rate shipping fee to cover the special packaging and/or expedited shipping costs required to ensure safe delivery. Orders with 12+ live plants ship free!
Return any new and unused item within 60 days for a full refund. Having difficulty with a product? Contact us to speak with an aquarium expert. If you need a replacement, fill out this form.
A small segment of the 180+ brands we carry require that customers contact them directly if/when problems arise. You can view the full list of those brands and get their contact info here.
We are unable to accept returns of Digital Aquatics, Neptune Systems, Vertex Aquaristik, Aqua Illumination (AI), EcoTech Marine, GHL, or Seneye products once the manufacturer's packaging seals have been broken.
Marine Depot is an authorized reseller for every product we carry. That means when you buy aquarium supplies from us, your products are not only backed by our own 60-day return policy, they also carry full factory warranties, where applicable. Some items have a 1-year warranty, others have limited lifetime warranties. Warranty coverage varies from manufacturer to manufacturer, so please read the product description of the item(s) you are considering thoroughly for details or contact us if you have warranty questions.
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