DEF Refractometer
Product ID: 77422768
📏0%-40% urea concentration range
🌡️Automatic Temperature Compensation (ATC)
🛠️Durable aluminum alloy body
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🚛 Keep your diesel running clean and compliant—measure DEF like a pro, anytime, anywhere!
The DEF Refractometer is a precision optical instrument designed for quick, accurate measurement of Diesel Exhaust Fluid concentration (0%-40% urea). Featuring automatic temperature compensation and a durable aluminum alloy body, it delivers reliable readings with just a few drops of fluid—no batteries required. Compact and portable, it’s the essential tool for diesel engine operators to ensure SCR system compliance and optimal performance.
| Customer Reviews | 4.6 out of 5 stars 729 Reviews |
D**D
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
G**Y
Cheap and good
Work great and a lot cheaper than other brands
M**T
Very easy to use highly recommend
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.
M**T
Need if buying DED off the shelf
Interesting to use but it does work as expected
L**D
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.
A**S
Works like a champ
I work at a john deere dealer works as it should clear view
R**A
Works great
Works great
D**H
Best results
It’s good product …..
K**R
Good purchase, happy with it.
Works as it should, checked calibration and it was good right out of thr box. Seems to be decent build quality.
A**E
Good product mercedes tech
Work how it should
S**R
works great
It was calibrated correctly when I tried it, it works great and a good value for the $. No more searching for the shop provided one anymore. I like knowing my own is accurate and easy to find.
Trustpilot
1 month ago
4 days ago