2025 All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EC & Temp(°C,°F) Meter - 0-9990ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums etc

I am impressed, I noticed the water coming out of my facuet seems to leave stains that are hard to get rid of. Just to think that's the water they say is safer a better than store bought. I got the tester to see if I would get the same reading in store bought and tap. I got a reading of 154 from the tap and store bought readings in the single digits. I would pour into a cup then empty then pour the other source. I always get the high reading for the tap vs the store bought. Which proves what I was thinking all along they are not the same. Just for the fun of it I tested Vitamin water and got a reading of 1800!!. I saw in a previous review that the tester is reacting to the minerals. I hope that's true or I have been drinking some super contaminated water for a long time!!.

It works good. Tested our reverse osmosis drinking water tap, our non-drinking tap water which runs through a whole house filter, then a softener, and our water that goes outside which is unsoftened and unfiltered, straight from our well. Results are pretty accurate compared to results we’ve gotten back from the health department.I like having it on hand to test the reverse osmosis tap periodically, to keep an eye on when the filters should be changed, as sometimes they need to be changed a little sooner than the recommended 3 months. Fast and easy to read results.

It arrived on time. It does have the readings on the back that you can compare it to. I tested it right away. I did my tap water, Poland Springs bottle water, and I did my purified water that is in my refrigerator. So results came out tap water 41, Poland Springs water 61, and my purified water that was in my refrigerator was 0.I tested a few times in different order to see if it would read differently, and it was the same.I would recommend this product to anyone who wants to keep an eye on what they are drinking.I would purchase this product again.

I’ve been using the 2024 All-New 4-in-1 TDS Meter for a few weeks now, and it’s proving to be a great little tool. It’s easy to use straight out of the box, and I appreciate the quick, accurate readings for TDS, EC, and temperature in both °C and °F. The digital display is clear, and switching between modes is seamless.I’ve tested it on my RO system and it gave consistent results across multiple tests — definitely feels reliable. The auto shut-off and hold functions are also thoughtful additions

Game changing product for a mom on the go. Using it at home or on vacation, keep you and your children safe with testing the water for contamination wherever you are. Easy to use and surprisingly accurate given the affordable price of this product. A mom must have

I was initially skeptical since it's inexpensive, so I tested out different water - tap water, hot water, mineral water, and distilled water, etc to see if it really works. And, yes, I can clearly see the difference! Easy to read and quick results. I'd recommend this.

I don't have the means to judge the accuracy, but when I tested tap, filtered (Britta) and reverse osmosis filtered water, the results were as expected.It takes just a few seconds to run a test, and the device is incredibly inexpensive, so I'm happy with it.It's a must have if you are using water filters.

2024 All-New 4 in 1 Tds Meter DigitalGreat value, appears to be reliable enough (ball park range) TDS Meter. While it has some nice bonus features as in temperature and electrical conductivity measurements, we were primarily looking for the TDS measurements; the backlit LCD display with numbers and color makes for easy readings within a few seconds or so.Managed to test several types of drinking water from sink water to different bottle waters as well as different filtered water from different RO systems, at home and outdoor water vending machines. Since some portable home RO systems have a built in TDS system we were able to effectively somewhat compare and back test the results. Short of assuming and relying on any one single measurement by itself we took a combined approach to get a sense of their accuracies; what we found was that the TDS results were generally a little off of each other by 10-40ppm, but still in the “ball park range” so that it would make sense to use it as a gauge, rather than assume perfect accuracy.