DEF Refractometer
Product ID: 77422768
📏Precision optical measurement
🌡️Automatic temperature compensation
🛠️Durable, no batteries needed
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🔧 Measure with precision, drive with confidence.
The DEF Refractometer is a portable, precision optical instrument designed for quick and accurate measurement of diesel exhaust fluid concentration. Featuring automatic temperature compensation and requiring only 2-3 drops of fluid, it delivers reliable results without the need for batteries. Lightweight and durable, it comes as a complete kit including a firm box, cleaning cloth, screwdriver, pipettes, and user manual—ideal for professionals ensuring optimal diesel engine performance.
| Customer Reviews | 4.6 out of 5 stars 737 Reviews |
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.
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.
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
D**N
It’s works… but
Can’t complain to much about the price of this and the quality. I will say for heavy use.. it’s probably not going to hold up riding around in my service truck and survive even in the case. It feels cheap.. it works however I am worried I’m going to open the case and it’s going to be broken
A**R
Seems to be the best way to check DEF.
Seems to be the best way to check DEF.
B**O
Refractrometro
Funciona de.marabilla
A**S
Works like a champ
I work at a john deere dealer works as it should clear view
G**Y
Cheap and good
Work great and a lot cheaper than other brands
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
2 months ago
2 months ago