Water Quality Tester, Accurate and Reliable, TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.

Tests μS/cm (A measurement of conductivity). An indirect measurement of total dissolved solids like metals, minerals and salts. And measures PPM (Parts per million of very dilute concentrations of substances in water. PPM substances depend on what type of water you are testing but in this case measures TDS (Total dissolved solids) in drinking water.I know that it works accurately because you can compare your readings to water quality reports for your local water through EPA or Utility District Water Reports online. Interestingly, the claims made by our City and County exactly matched the reading range on this device. We have the second cleaest drinking water in the U.S. according to the EPA. This verifies the readings as reported are accurate.You can ignore the color coded lights, red does not mean bad water. Compare that to the EPA and other reports. It will often show red even in perfectly clean water. The readings are good and well within the range to claim it is an accurate tool. Just ignore the red and green lights.On a side note we also use a Primpo water dispenser. Tested that water and it comes in at 3 PPM. You cannot get cleaner water.

This is a very reliable and accurate TDS meter for the price. I bought this TDS meter in Jan 2023. I would replace it with the same when needed! The only thing I have had to do is replace the battery and a couple of times... Calibrate it! (A very important feature, that is NOT mentioned in the description, and is important to many shoppers). YES! It "CAN" be calibrated!!! I have included the instructions in a picture! I don't know why the manufacturer wouldn't mention this in their description. It is important to many people. I hope this helps you make a better decision.

it was ok device

It’s accurate, fits in your pocket, great tool for ppm and temperature checks, and affordable. I would recommend everyone has any tools that can identify what you are drinking and eating. Most times we really don’t know what we are exactly drinking or eating, at least this is one step, this temp meter 3 in 1, the beginning of awareness. I install RO systems and water softeners and this tool goes from contracting to personal use. Buy it and keep it!!

Great product. It's my second purchase. Used it to test the water at Walmart before I buy the water. Sometimes the water quality at Walmart was not good ... not even as good as the running water after a heavy downfall on our land .... and so we didn't buy the Walmart water after we use this product to test the water quality.

The item met expectations and performed perfectly out of the box. It's a little hard to tell what the readings mean but I just need to read up on it a little more.

I followed the instructions, it accurately tells you if your water is contaminated. It does exactly that.

Before calibrating this it was off by around 20% (286 ppm on a 342 ppm solution), not sure how accurate it is in general. For a cheap consumer device to just generally measure TDS it's probably good enough, though I'd probably opt for a different one given the claims of this being calibrated don't seem to be true.