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Review on πŸ’‘ Professional DEF Tester Tool W16500 for Optimal Performance by Richard Puckett

Revainrating 1 out of 5

Useless Don't waste your money

Here I thought it would be easier than using a spectrometer, but I was wrong. I measured a new DEF box and according to the instructions it was bad. Then I use my refractometer and it reads perfectly as it should because the DEF was new, boxed, kept indoors and a few months old at best. This tool is not accurate and cannot be trusted.

Pros
  • Easy setup
Cons
  • There are other interesting options.