TDS Meter Digital Water Tester, Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More

This TDS meter works great. It’s simple to use, very accurate, and I like that it also shows temperature and EC. The carrying case makes it easy to take anywhere. Perfect for testing drinking water and aquariums.

This is a good quality product, solid, easy to use and to read. However, a friend suggested I get it to check the safety of drinking tap water on a trip to several countries abroad. First I tested it at home...it read RED 195 ppm. Boiled water read higher 225 ppm. We have had our water tested and have a softener. Our water has no bacteria, but is somewhat hard. I tested distilled water, it read 2 ppm. I tested the water in Paris, it was 225 ppm. In Beaune, where the water is hard, also RED 227 ppm. So, yes there are dissolved solids in the water, but it is safe to drink. This really did not serve my needs although it works as promised and is good quality. Just consider whether it is useful for what you want to use it for. I have to give it 5 stars because it works exactly as described, I simply followed a friend's advice without reading the fine print because I was in a rush.

For the price, this was a great way to test hoe well my new 5 stage reverse osmosis water filter works compared to my old Brita filter and tap water. Is it accurate? I have no way to know unless I also purchase an expensive water tester. However, it does show the relative difference between the filtered and unfiltered water and the results were really surprising to me. City water was 233ppm, Brita was 179ppm (the filter is about a month old), and the 5 stage filter was 10ppm. So that makes me feel good about installing the water filter in my kitchen. I’ll post photos of the different tests but I did want to talk about the meter. This seems like a fairly common meter, a lot of companies sell it and the price ranges from 10-20 dollars. This one comes in a vinyl case and has a cap to protect the test leads. You just turn it on and put it in an inch of water and you get a reading instantly. The primary reading is parts per million but it also shows us/cm, degrees C, and degrees F if you press the mode button. There is a hold function so you can still read the display after you remove it from the water. Overall quality seems fine, it’s just plastic. There is a color chart on the back of the meter that tells you if your water is witting acceptable range or not. Overall I’m happy with this tester and I hope it lasts so I knew when to change the filters on my 5 stage filter.

I've bought three of these to loan to students for use at home and in the field. We measure environmental water samples, sometimes in-situ and sometimes brought back to home (students not allowed into lab this year). These meters read within +/- 10% of correct values when testing commercial standards with known specific conductance. Two of the three meters were within 5%, and my last one is reading 10% low. As long as we know the bias, we are OK for our teaching and research application. My students have not used conductance meters before. I was previously using a Hanna meter that costs 15x as much, and its only benefit is the ability to calibrate. It is harder to figure out and the novices might not be able to calibrate. A Hanna-compatible calibration solution costs over $22, and this DUMSAMKER meter costs 40% less than it would take to correct a 10-15% bias in the Hanna. I also tried to get working a professional grade meter that has been sitting unused for maybe 20 years. Three frustrating hours later I gave up on that and bought a third one of these. Five stars for cost effectiveness. Please check against a commercial TDS/EC standard if you need good accuracy. BlueLab EC 2.77 is an example available locally for $8 and works to check these meters.

Nice little meter. It uses the 500 ppm scale.

Where I live the water quality is a real problem and this devise lets me know just how much dissolved solids and therefore contamination is in my publicly supplied water at any given time. It has measured the TDS value as high as 529 ppm during a recent water crisis. We know better how safe or unsafe the water is to drink or bath in.

Overall, this appears to be a solid TDS reader. It is lightweight, easy to read, and the background colors are incredibly helpful (green for safe, red for nope don't drink it). The reason for my 3/5 star rating has to do with the accuracy. I tested the tester (say that 10 times fast) on water from my sink in a clean cup. After noting the first value, I ran several consecutive trials. The initial value wasn't replicable & often varied in a range between 1 to 20 from the initial value. Over the course of several days I tested it on a number of differing water sources, again with varying results. The values did stay within a certain range, however. Initially I had wanted to return it, but then ultimately realized that despite the lack of consistency in the readings it is good enough for what I am using it for, which is testing water from my ZeroWater filter to determine when to change the filter. This is because the TDS reader included with ZeroWater filters is wildly inaccurate & obviously poorly made. I found that when relying on the ZeroWater TDS reader to know when to change filters, my water starts tasting like fish... But when using this water tester & taking the average of 3 trials, I am able to change the filter before I start tasting that gross fishy taste. Overall, for a consumer's average use that doesn't require extreme accuracy, I would recommend this product. Please note that your mileage may vary & my own tester's variability could be attributed to a variety of things including a manufacturing defect, overheating due to shipping, or user error. Thanks for reading & I hope my review helps you! :)

Since it was raining yesterday I captured about 4 ounces of rainwater, it tested at 2. Next I tested bottle water with alkaline, it tested at 37. Lastly I tested from the tap water, it was 163. The city tell us it's safe to drink. We need more rain in Los Angeles.