Zero-Oxygen Solution Electrolytic Solution and Membrane Cap Kit for Dissolved Oxygen Meter 2 Bottles 30ml Electrolyte Solution and 1 Bottle 50ml Zero Oxygen Solution and 6 Membrane Cap

Really showed the true quality of water, tap and purchased water. This is worth it.

I LOVE this product. It’s so accurate. I thought I would only be able to use it once, but I was wrong. You can use it forever! I took it to work and my coworkers got to test their water of choice and find out how drinkable (or not) they were. And it’s so affordable! Definitely worth it!

Purchased on 09-18-2023 for $11.58. ($12.85 - $1.29/10% Discount)It turns on. It takes a reading. It displays the result. That's about all that I can state with certainty.Is it accurate? I have no idea!The problem is that if you have no reliable benchmark of the water that you're testing, you don't know if the measurement given by this tester is accurate. You have to take it on faith that it was calibrated correctly and accurately at the factory.If your neighbor is an engineer with the local water district and has a $25,000 water tester that gets calibrated everyday, you know that it's accurate. So, when he measures your tap water and gets a reading of 200 PPM, you know that that's accurate. And that gives you a reliable reference number as a starting point to gauge the accuracy of this tester.But, I don't have a neighbor who is an engineer with the local water district who has a $25,000 water tester that gets calibrated everyday. What now?Who polices the police? Who tests the testers? There's no 'Good Housekeeping Seal of Approval' equivalent, so...There's a way to calibrate this at home, but they tell you to use a special solution---WHICH THEY DON'T INCLUDE. So how?Well, I have to take it on faith and trust that the tester is accurate. I have no choice but to believe that it's reliable. Not a great place to be.It was inexpensive, so that's good. I guess it's better than nothing.Not exactly a rousing endorsement...If that engineer who has a $25,000 water tester moves in next door, I'll update how accurate this is.

I’m very pleased with water test digital. It is accurate and good information to know about water in my faucet if is is good to drink or not👍🏽it is necessary for us in Texas to check the water.

You need an advanced college degree as well as a ton of patience to deal with this thing. Put some liquid in it, hop around backwards on one leg, put some more liquid in the thing, then stick it in the water for an oxygen reading. Nah - life's too short. I bought another aerator instead.

Easy to see the numbers. Comes with directions. Appears to be accurate. I like it better then another one I have.

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This is not just a digital “pop it in the water for a reading” meter. There’s all kinds of calibrations to do and such… all the reviews are for the TDS meters - not the DO meter. If you really need to know the O2 levels of your pond then maybe this works. IDK, I didn’t even try it because the process of instructions overwhelmed me. Oh, and I nearly ripped my fingernail off trying to remove the meter from the packaging. So be aware of the complexity prior to purchasing.

preciso

Con este medidor obtengo certeza del grado de seguridad por la limpieza del agua que nos llega del sistema de OAPAS aquí en Naucalpan.