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DEF Refractometer for Measuring Diesel Exhaust Fluid Concentration of Diesel Engines

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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, May 2
Order within 17 hours and 42 minutes
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Features

  • The refractometer is a portable precision optical instrument used for measuring the diesel exhaust fluid concentration.
  • Help you know your diesel exhaust fluid condition in a quick and easy way.
  • Features automatic temperature compensation (ATC)
  • Just need 2-3 drops of solution, you can get accurate readings.
  • Durable and Easy to Use & Carry,and no battery needed.

Product Dimensions: ‎6.5 x 1.5 x 1.5 inches


Item Weight: ‎9.1 ounces


Manufacturer: ‎Xindacheng


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎June 7, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Accurate refractometer
As a diesel Technician, I rely on the accuracy of a product. Works very well for the application and is accuracy is spot on. Just make sure you follow the instructions on how to calibrate it. Easy to operate an clean
Reviewed in the United States on January 31, 2026 by dustin david
    • Cheap and good
Work great and a lot cheaper than other brands
Reviewed in the United States on November 5, 2025 by Geovanny
    • Very easy to use highly recommend
Review Image by Matt
I bought it to check my DEF fluid and it worked great. I first tested with distilled water and it read 0, so no adjustments were needed. Tested the DEF and it was what is was supposed to be (32.5). Would recommend it you need to test anything.
Reviewed in the United States on December 30, 2025 by Matt
    • Need if buying DED off the shelf
Interesting to use but it does work as expected
Reviewed in the United States on March 30, 2025 by Matt L. Schmidt
    • Works like a champ
I work at a john deere dealer works as it should clear view
Reviewed in the United States on March 4, 2026 by Andy santos
    • THIS CAN SAVE YOU $$$$
Diesel engine owners know that this is a must have. This device can save you $$$$ in repairs. Bad DEF will ruin someone's day and pocket. This little device is awesome! This device will tell you if the DEF is good or bad with just one drop of DEF. Can't get easier than that. I've been using this device for 7 years. ... show more
Reviewed in the United States on July 7, 2025 by L Mrad
    • Works great
Works great
Reviewed in the United States on March 9, 2026 by Rita
    • Best results
It’s good product …..
Reviewed in the United States on December 1, 2025 by Dharminder singh

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