Review on TecUnite Droppers: Precision-Calibrated 🌡️ Essential Oil Droppers for Accurate Dispensing by Brad Schaefer

Reduce your expectations of size markings, but they can still be useful when making your own adjustments. As other reviewers have pointed out, the look/shape of the drippers doesn't quite match. Out of twenty, four or five are from another party. However, as you can see in the third image, the one with the lower marks at the end doesn't have such a long thin tip, so I can easily believe that the measured marks match from one pipette to the next. The real problem is that ALL drippers have a huge slope. If I fill the pipette 10 times to the 1ml mark I get 15.0ml (not 10.0ml) and if I fill the pipette 10 times to the 0.5ml mark I get 9.0 ml (not 5.0 ml) . So I have to fill it just above the 0.5ml mark if I want to get 1ml. That gives: 0.25ml = 0.6ml, 0.5ml = 0.9ml, 0.75ml = 1.2ml and 1.0ml = 1.5ml. You will probably want to confirm if your Results give different results. I fill to about the "1ml" mark (= true 1.5ml) when I fully squeeze the bulb and it takes more effort to fill to a smaller level. Bottom line, for me, it's still far more useful than an unmarked meter dropper, but you'll need to seriously "calibrate" what you're actually getting if you're hoping to get any sort of accuracy.