SKU: 58134655566

Heathrow Scientific 48202 Digital Refractometer, MDX-202, Seawater/Salinity, 4 scales

$178.54 $198.38
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

Heathrow Scientific 48202 Digital Refractometer, MDX-202, Seawater/Salinity, 4 scalesDigital Seawater Refractometer delivers quick, digital accuracy with high end performance features like automatic temperature compensation (ATC) and continuous loop average readings. It has easy operation with a large digital LCD display that shows all of the needed data on screen and yields quick results. The 4 scales included in this digital refractometer (salinity, chlorinity, specific gravity, and refractive index) can be used in a wide variety of

Digital Seawater Refractometer delivers quick, digital accuracy with high-end performance features like automatic temperature compensation (ATC) and continuous loop average readings. It has easy operation with a large digital LCD display that shows all of the needed data on screen and yields quick results.
The 4 scales included in this digital refractometer (salinity, chlorinity, specific gravity, and refractive index) can be used in a wide variety of applications including water/wastewater, aquatic, and aquaculture. This Digital Refractomer also comes with a 1-year warranty and includes a hard shell case with protective lining, rubber grip & prism cover, disposable transfer pipette, AAA battery, and instruction manual.

Features:
Compact & lightweight
Removable grip & prism cover for easy cleaning
Continuous loop read features (15 reads)
Automatic Temperature Control
Zero with distilled water
IP67 rating for detecting unit, IP65 for remainder
589.3nm LED
Stainless steel prism well
°C/°F switchable temperature display
Salinity Range: 0 to 100 ppt
Chlorinity Range: 0 to 57 ppt
Specific Gravity Range: 1.000 to 1.075
Refractive Index Range: 1.3330 to 1.4200 nD

Package Includes:
Digital refractometer (Model MDX-202)
Rubber grip & prism cover
Hard shell case with protective lining
Disposable pipet
Battery
User manual

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 58134655566

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4.7 ★★★★★
Based on 10 reviews
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riceliteratureandbooks
Massapequa, US
★★★★★ 5
Beautiful Wallet
Color: With NO Logo - Smooth Nappa Black
Well constructed and beautiful wallet. The black Nappa leather I ordered is soft and smooth to the touch and you can tell by the look, feel, and smell that it is high quality. I love that you can order this with both a logo and no logo for a clean look. The design on this is well thought out. I'd definitely recommend this wallet to anyone. It is an amazing value and far superior to any other $30 wallet I've ever seen.
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Reviewed in the United States on March 19, 2026
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Verified Purchase
Demosthenes
Massapequa, US
★★★★★ 4
Almost perfect!
Color: With Coin Pocket - Forest Brown
I purchased this wallet primarily for its generous number of conveniently located slots and its coin pocket. If you can't fit everything you want to EDC in this wallet, you need to think about getting a sling bag! Having returned the same model in Grizzily Brown due to a stitching defect and ordered this one in Forest Brown, I can see it is a richer, lighter shade and the finish seems smoother and more refined. Some of my cards were tight in previous wallet slots, but everything fits great in this one. Why the one star off? First, this wallet is about a quarter inch too large in all dimensions, especially thickness. While it doesn't protrude out the top of my back pocket, it is a challenge to close the button on some pants and it is also snug side-to-side, so removal involves some wiggling until pockets stretch and the wallet breaks in. The leather used in its construction is smooth but stiff at first, given that it is about twice as thick as most American or European wallet leather I've owned: think bullhide. The smell is also a little off, definitely natural cowhide but processed with whatever is used to tan leather in India rather than in the United States. Finally, this looks like something that belongs in a pair of jeans or casual pants, NOT pulled out of a suit at a Michelin star restaurant. The stitching, evenness of dye and lines are far from perfect, but what it lacks in looks it more than makes up for in every day function, character, and anticipated durability.
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Reviewed in the United States on January 13, 2026
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KendallTom
San Leandro, US
★★★★★ 5
The Best Wallet
Color: Boulder Black - Napa Smooth Black
This is the second wallet I have purchased from Bull Guard. The first one is identical and I have used it for approximately one year. The first wallet has held up perfectly. I just decided to buy a second one because I am so happy with the first one and I decided to break up my cards into frequently used in the second, new wallet and less frequently used in the first and older wallet. The capacity of the wallet is excellent. It easily holds all my credit cards, drivers license, bills, insurance ID cards, and my global entry card. The material, workmanship, durability, and quality is also excellent. The wallet is all leather and breaks in perfectly. The size is also perfect fitting perfectly in my rear pocket. For the price, this is the best man's wallet I have ever had and I highly recommend it.
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Reviewed in the United States on November 22, 2025
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Reviews By Mike
Lexington, US
★★★★★ 5
Solid Wallet
Color: Wild Buffalo Grey
I recently purchased the ULL GUARD Buffalo Leather Wallet, and I’m genuinely impressed with its quality and craftsmanship. The buffalo leather feels durable and premium—this is a wallet that looks like it’ll stand the test of time. What I love about it: - Thoughtful Billfold Design: The bill compartment includes a separator, which is perfect for organizing cash and checks separately. It’s a small detail that makes a big difference. - Plenty of Storage: There are numerous credit card slots, making it easy to keep all your cards neatly arranged and accessible. - Clear ID Pocket: The transparent ID slot is a convenient touch, especially for quick access to your driver’s license or work badge. Overall, this wallet combines functionality with rugged style. If you're looking for something that’s both practical and built to last, the ULL GUARD Buffalo Leather Wallet is a solid choice.
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Reviewed in the United States on November 7, 2025
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Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 5
A Quality Wallet
Color: Boulder Black - Napa Smooth Black
So far so good. The wallet has a great feel and is of high quality. It looks great and has plenty of credit card slots and I love the bill holder, with a divider. It is wider than I expected, but it stays thinner than the last minimalist wallet I had so the trade off is worth it to me. I would buy it again.
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Reviewed in the United States on April 28, 2026

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