ONiLAB Single Channel Pipettors Adjustable Volume Micro Pipettes, 0.1-2.5μl (7010101001)

I have an aquarium. I test the water. It used to be a pain to get 10ml of water in the tube to test. Dip the tube in, look at the level, dip again for more water or tip a bit out. The tube, and hand, was wet.This thing is wonderful. Dip it in the water, press and release the button, put the tip in the tube, press the button again. 10ml in the tube.Can I do without this, yes. Does it make my life wonderful with butterflies coming out my but, no. Does this make a not very enjoyable thing I have to do a little better, yes.A lot of "laboratory" things can be used outside the laboratory and make lots of things easier. I have a laboratory thing designed to shake bottles that I use to shake my water testing tubes.It has a window showing how much it will move. Turn the button top to change this. These come in all sorts of different sizes. The one I have does up to 20ml. You can set it by tenths of a ml. You can also make tiny adjustments do if you set it to 10 and it is doing 10.1 you can adjust so that it is doing 10.I find that I turn the button on top when using it, so I have to check that the window still says 10 occasionally. They could, easy for me to say, do something different to make it harder to change the amount by accident.

I love these! Teenager-proof!

Works great!!

Does what it says on the tin. It extracts, moves, and inserts measured quantities of liquid wherever you'd like. At this price I would not trust the numbers to be precise for academic research if you need your pipettes to be ultra-precise for published research or healthcare assays or medication dosing but if you are doing molecular bio and numbers don't have to be perfect then this is a fantastic deal. I use these for my home lab so I don't get in trouble using company equipment for personal use. They work great. I love them! Never had a problem?

Nice and accurate. I use this for my reef tank. Far better than 10 cent syringes.As others have noted- don’t push all the way down. Slowly apply pressure until you feel a soft “stop”, then slowly release- never let it spring back.The second full stop is unmeasured and just for pushing any remnants out.One thing that would have been nice is if they included multiple tips. Can’t really use just one for everything.

Having a hard time calibrating it. I guess it is what you pay for. Not accurate

This aren't in the same league as the ones you find in professional labs that easily cost ten times as much, but they are fantastic for home/hobbyist use. I go through tons of single use pipettes that are inaccurate and wasteful, but with this, I just have to trash the tip and I'm back in business. It's so much easier to use too. And to anyone who is complaining about inaccuracy, I did not have that issue at all. I confirmed using distilled water on a milligram scale and found it to be very, very good in terms of accuracy and precision.

Works well. Easy to use. Good price.