TDS Meter

Dual Function TDS Meter for Water Quality and Temp Measurements

20 reviews
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  • Measure TDS and Temperature of drinking water
  • Hold button for easy measurement readings
  • Range 0-9990 PPM
  • Batteries included


Total Dissolved Solids Or TDS is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid. TDS is sometimes referred to as parts per million (ppm). You can test water quality levels using this digital TDS PPM meter.

Primary sources for TDS in receiving waters are agricultural & urban runoff, clay-rich mountain waters, leaching of soil contamination, & point source water pollution discharge from industrial or sewage treatment plants.

TDS in parts per million (PPM)

Chart values represent national U.S. averages. Actual TDS levels for geographic regions may vary.

Customer Reviews
4.2 Based on 20 Reviews
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Michelle R.
United States United States
I recommend this product

I love my RKIN water filter machine. The water tastes amazing!

I still have yet to use this actual product, because the water tastes so good, I don’t have a need for it right now. I am very sensitive to water, to the point I can taste the chlorine if it’s not filtered properly. I look forward to giving this product a try on the unfiltered water, and then comparing to the filtered


Awesome News. We are happy to hear you are satisfied with your purchase.

Bruce C.
United States United States
I recommend this product

Great Tester

I have another name brand tester and in comparison they both read fairly the same and both are accurate. Thank you. I have recommend ed your company to my friends. Bruce


Thank you for your positive feedback.

Sheila B.
United States United States
I recommend this product

TDS meter

Arrived in a timely manner - does not work! No reading!

United States United States
I recommend this product

Evian lover

Product works as promised. It indeed leaks a little but it’s not as dramatic as some reviewers have said. I did have it flood on me once but that’s because I didn’t push the bucket all the way in. Oh well, lesson learned. The light sensor is sensitive so once the bucket is in, it’ll light up, but now I’ll give it an extra push to ensure it all the way in. Easy to use and install. Oh one more recommendation, the instructions say to run in twice and throw before drinking. I recommend 3-4 times. I tasted charcoal in the 3rd round and almost returned the whole thing. It’s been a couple weeks, I will admit that it has crossed my mind how long these filters will last since I drink so much water every day. I haven’t used their free water test kit yet but that’s also because I have trust issues with the tester itself (not important though). Water taste is excellent, I used to drink 3 Evian 1.5L bottles a day, this machine has been great to help eliminate waste and tastes great. It is truly a big machine , make sure you have the counter space for it. It takes a little long to filter water the first few times so don’t worry, it gets faster over time. I live alone and it’s perfect, if I lived with my family, this wouldn’t work. I got the white one because I’m ocd and like to see when it’s dirty but my rental unit countertops are dark so it sticks out like a huge sore thumb, I recommend matching it to your counter top so you can pretend it is kinda built in. The only reservation I have is… I hope I love this as much as I do 9 months from now, meaning I hope the taste stays the same and the filter works for a year, as promised. I don’t like surprises so we shall see! Thanks RKIN Dual Function TDS Meter for Water Quality and Temp Measurements Review
Brittney C.
United States United States
I recommend this product


The only thing that I don’t like about it is that I have to add ice since it doesn’t dispense cold Water . I haven’t really used it because of the that reason but it’s a good machine

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