DEF Refractometer 0-40% AdBlue Diesel Exhaust Fluid Urea Concentration Refractometer Hand Held Refractometer with ATC for Automotive Diesel, Made of Copper Not Cheap Aluminum (Model AMR001)

Works like is should.

Works as advertised and feels like it's a quality build.

Arrived on time and put to immediate use. It’s easy to use and the instructions are clear. Three different samples from three different sources produced similar results. I won’t ever add DEF again without testing it first. Thank you.

Arrived on time looks good feels like good quality. Will update later on functionality

Came fast and does what it's supposed to

Works as intended

I use this several times a day to test DEF systems for DEF dilution, it’s fast and accurate

Same tool snap on is selling for a fraction of the price. Excellent quality

Das Produkt ist mehr als in Ordnung! Der Preis ist sehr gut und die Qualität sowie bei teuren Geräten auch. Für die Messung von AdBlue ist das Gerät sehr gut geeignet. Es lässt sich sehr gut ablesen und handhaben. Für dieses Produkt schreibe ich gern eine Bewertung, obwohl ich sonst nicht gern Bewertungen schreibe!

This item seems to be of good quality but we'll never know for sure. There was not one word of English in any of the accompanying literature. Everything including the instructions was in what I assume to be Chinese. It's going back.

Good product

Ok

Easy to use gadget which says accuracy