Deliver toUnited Arab Emirates
R2 Extract Coffee TDS Refractometer, 0-30% Range, ±0.02% Precision, Portable, Waterproof, Rechargeable, Ideal for Pour Over, Espresso, and Coffee Enthusiasts

Description:

  • Precise TDS Measurement for Better Brews: Achieve perfect extraction with 0-30% TDS range, ±0.02% precision, 0.01% resolution, and ±0.03% accuracy — designed for professional coffee brewing.
  • Designed for Pour Over and Espresso Brewing: Portable and easy to use, making it ideal for specialty coffee shops, baristas, and enthusiasts who demand consistency in pour over, espresso, and cold brew.
  • Waterproof and Effortless Cleaning: IP67 water-resistant design lets you rinse the sample dish under running water and wipe it dry — quick and easy for busy brewing environments.
  • Flexible Testing with Multiple Modes: Switch between Standard, Multi-Test, and Auto-Test modes to meet the needs of different brewing styles and optimize your coffee recipes.
  • App Connectivity for Recipes and Insights: Sync with the app to save brew data, share recipes, and access brewing insights, helping you and the coffee community refine techniques together.

  • Reviews:

    5.0 out of 5 stars Perfect for home coffee enthusiasts

    M. · July 24, 2025

    (function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } This is a fantastic addition for anyone with an unhealthy obsession over their coffee. If your already weighing your espresso input and output and are ready to take the next step into measuring TDS (Total Dissolved Solids) and extraction yield, this tool is for you. The form factor is sleek and functional, especially for a home-use TDS meter, and the display is clear and easy to read, showing all the key metrics such as TDS and sample temperature.Operation is straightforward: place your sample in the top cup and press the button to measure. However, getting an accurate reading with a refractometer does require a bit more care. It is best to zero at room temp before each reading. For the most precise results, the temperature of your calibration sample (typically distilled water) and your coffee sample should be nearly identical(ideally within 0.1°C). The easiest method I’ve found for cooling hot espresso is using spoon transfers to bring the temperature down quickly. If you're already deep into the coffee world, you probably enjoy that kind of process anyway.The unit supports Bluetooth connectivity and pairs with the DiFluid app, which is especially cool if you own other DiFluid gear as it can aggregate your data across devices. That said, the app’s instructions and the included manual leave a lot to be desired. There is a QR code link to tutorials that is a decent overview on how to use and the R2 video covers what is missing in the manual.Despite the learning curve, this device opens up a new level of precision for home espresso or pour over experimentation, and I’m already eyeing their matching scale next. If you're serious about dialing in your brews, this is an excellent tool to have in your kit. I think the $230 price for such a device in this form factor, quality level, and with app integration is acceptable.

    5.0 out of 5 stars Take your coffee out of the subjective anecdotal world and give it EMPIRICAL DATA!

    l. · July 21, 2025

    Prior to this, your only option to gauge the quality of your coffee was by taste alone. Taste, being entirely subjective, can vary from person to person, and can even vary day to day for the same person. There are no numbers to it, just an opinion.This puts numbers to it. Raw data that lets you know the PPM, refractive index, and temperature all at once. And, oh yeah, there's an app that allows you to log the data as well as track trends. No more wondering, "Does the coffee taste weak today, or is it just me?" Nope, this is hard data. This is coffee brought into the modern, data-centric world, and I love it.It's easy to calibrate (just use ordinary water), easy to use, and easy to clean (it's waterproof!). I'm pretty sure you can't run it through the dishwasher, though, so maybe don't do that. Just rinse it under the tap and pat it dry and it's ready for the next data set. And the quality is excellent, I have other refractometers not dedicated to coffee, and this is one of the best I've seen or used. It's even rechargeable!Is it on the expensive side, I suppose. But in terms of value, there are few things people value more than empirical data to prove or disprove something, and this gives that back in spades. If coffee is either your business OR a serious hobby, this is one of those tools that seems invaluable for the information it gives back. To that end, I highly recommend this. 5 stars.

    2.0 out of 5 stars Not the best.

    D. · July 22, 2025

    This works pretty good and it’s easy to use and very accurate but I do think it’s cheap made and not worth your money. The quality of it is not good and I don’t think it will last you long time. 2⭐️⭐️

    5.0 out of 5 stars Compact. Easy to use.

    J. · July 23, 2025

    Compact, easy to use, easy to read screen, quick readings, what more can you ask for in a TDS Refractometer? Works as expected.

    5.0 out of 5 stars Great Tool For Any Coffee Nerd

    J.B. · July 7, 2025

    As somebody who has gotten really into coffee over the last few years, this is a cool addition to my collection of tools. It works as advertised and has tons of functionality that I'm not even using yet.

    5.0 out of 5 stars Such a great tool for the coffee perfectionist

    D. · July 1, 2025

    This is a great refractometer for testing your coffee extractions. It's so tiny and portable and even has an app for logging. The quality is great, the app is easy to use, and the carrying case even has a slot for the tiny spoon. I love it as a portable version of my much larger difluid devices

    R2 Extract Coffee TDS Refractometer, 0-30% Range, ±0.02% Precision, Portable, Waterproof, Rechargeable, Ideal for Pour Over, Espresso, and Coffee Enthusiasts

    Product ID: UO0S5DP72OA
    Condition: New

    4.3

    AED1,46533

    Price includes VAT & Import Duties
    Model: R2 Refractometer
    Availability: In Stock

    Quantity:

    |

    Order today to get by 7-14 business days

    This item qualifies for free delivery

    Returns & Warranty policies

    Imported From: United States

    At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.

    BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.

    Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.

    If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.

    Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.

    All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.

    While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.

    Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.

    BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.

    All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.

    All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.

    Similar suggestions by Bolo

    More from this brand

    Similar items from “Refractometers”

    R2 Extract Coffee TDS Refractometer, 0-30% Range, ±0.02% Precision, Portable, Waterproof, Rechargeable, Ideal for Pour Over, Espresso, and Coffee Enthusiasts

    Product ID: UO0S5DP72OA
    Condition: New

    4.3

    R2 Extract Coffee TDS Refractometer, 0-30% Range, ±0.02% Precision, Portable, Waterproof, Rechargeable, Ideal for Pour Over, Espresso, and Coffee Enthusiasts-0
    Model: R2 Refractometer

    AED1,46533

    Price includes VAT & Import Duties
    Availability: In Stock

    Quantity:

    |

    Order today to get by 7-14 business days

    This item qualifies for free delivery

    Returns & Warranty policies

    Imported From: United States

    At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.

    BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.

    Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.

    If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.

    Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.

    All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.

    While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.

    Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.

    BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.

    All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.

    All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.

    Description:

  • Precise TDS Measurement for Better Brews: Achieve perfect extraction with 0-30% TDS range, ±0.02% precision, 0.01% resolution, and ±0.03% accuracy — designed for professional coffee brewing.
  • Designed for Pour Over and Espresso Brewing: Portable and easy to use, making it ideal for specialty coffee shops, baristas, and enthusiasts who demand consistency in pour over, espresso, and cold brew.
  • Waterproof and Effortless Cleaning: IP67 water-resistant design lets you rinse the sample dish under running water and wipe it dry — quick and easy for busy brewing environments.
  • Flexible Testing with Multiple Modes: Switch between Standard, Multi-Test, and Auto-Test modes to meet the needs of different brewing styles and optimize your coffee recipes.
  • App Connectivity for Recipes and Insights: Sync with the app to save brew data, share recipes, and access brewing insights, helping you and the coffee community refine techniques together.

  • Reviews:

    5.0 out of 5 stars Perfect for home coffee enthusiasts

    M. · July 24, 2025

    (function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } This is a fantastic addition for anyone with an unhealthy obsession over their coffee. If your already weighing your espresso input and output and are ready to take the next step into measuring TDS (Total Dissolved Solids) and extraction yield, this tool is for you. The form factor is sleek and functional, especially for a home-use TDS meter, and the display is clear and easy to read, showing all the key metrics such as TDS and sample temperature.Operation is straightforward: place your sample in the top cup and press the button to measure. However, getting an accurate reading with a refractometer does require a bit more care. It is best to zero at room temp before each reading. For the most precise results, the temperature of your calibration sample (typically distilled water) and your coffee sample should be nearly identical(ideally within 0.1°C). The easiest method I’ve found for cooling hot espresso is using spoon transfers to bring the temperature down quickly. If you're already deep into the coffee world, you probably enjoy that kind of process anyway.The unit supports Bluetooth connectivity and pairs with the DiFluid app, which is especially cool if you own other DiFluid gear as it can aggregate your data across devices. That said, the app’s instructions and the included manual leave a lot to be desired. There is a QR code link to tutorials that is a decent overview on how to use and the R2 video covers what is missing in the manual.Despite the learning curve, this device opens up a new level of precision for home espresso or pour over experimentation, and I’m already eyeing their matching scale next. If you're serious about dialing in your brews, this is an excellent tool to have in your kit. I think the $230 price for such a device in this form factor, quality level, and with app integration is acceptable.

    5.0 out of 5 stars Take your coffee out of the subjective anecdotal world and give it EMPIRICAL DATA!

    l. · July 21, 2025

    Prior to this, your only option to gauge the quality of your coffee was by taste alone. Taste, being entirely subjective, can vary from person to person, and can even vary day to day for the same person. There are no numbers to it, just an opinion.This puts numbers to it. Raw data that lets you know the PPM, refractive index, and temperature all at once. And, oh yeah, there's an app that allows you to log the data as well as track trends. No more wondering, "Does the coffee taste weak today, or is it just me?" Nope, this is hard data. This is coffee brought into the modern, data-centric world, and I love it.It's easy to calibrate (just use ordinary water), easy to use, and easy to clean (it's waterproof!). I'm pretty sure you can't run it through the dishwasher, though, so maybe don't do that. Just rinse it under the tap and pat it dry and it's ready for the next data set. And the quality is excellent, I have other refractometers not dedicated to coffee, and this is one of the best I've seen or used. It's even rechargeable!Is it on the expensive side, I suppose. But in terms of value, there are few things people value more than empirical data to prove or disprove something, and this gives that back in spades. If coffee is either your business OR a serious hobby, this is one of those tools that seems invaluable for the information it gives back. To that end, I highly recommend this. 5 stars.

    2.0 out of 5 stars Not the best.

    D. · July 22, 2025

    This works pretty good and it’s easy to use and very accurate but I do think it’s cheap made and not worth your money. The quality of it is not good and I don’t think it will last you long time. 2⭐️⭐️

    5.0 out of 5 stars Compact. Easy to use.

    J. · July 23, 2025

    Compact, easy to use, easy to read screen, quick readings, what more can you ask for in a TDS Refractometer? Works as expected.

    5.0 out of 5 stars Great Tool For Any Coffee Nerd

    J.B. · July 7, 2025

    As somebody who has gotten really into coffee over the last few years, this is a cool addition to my collection of tools. It works as advertised and has tons of functionality that I'm not even using yet.

    5.0 out of 5 stars Such a great tool for the coffee perfectionist

    D. · July 1, 2025

    This is a great refractometer for testing your coffee extractions. It's so tiny and portable and even has an app for logging. The quality is great, the app is easy to use, and the carrying case even has a slot for the tiny spoon. I love it as a portable version of my much larger difluid devices

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    More from this brand

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