AquaticLife TDS Meter Digital Water Quality Tester for RO-RODI System Drinking Water, Aquariums, Hydroponics, 0-999 ppm Measuring Range, 1 ppm Increments, 2% Readout Accuracy

This product came with very simple packaging. But this item works great! Came with instruction but very simple to use. Compared it with the meter that came with ZeroWater pitcher and the readings were exact 8 of the 10 times. So I believe this product is pretty accurate. I mean I don’t have the real tool that professional uses to get the readings so can’t tell you how far the numbers differ from the “real true”. But for the price it’s great!

Must have to check your water's Total Dissolve solids!

We were smelling Chlorine (even from water out of the fridge with a filter)This was important to test & continue to test after having an RO system installed

Does as it should. Easy to use, and easy to read. Only takes about 30-45 seconds to have the most accurate reading. I would recommend you pick one up if needed.

Nice design and seems working, but the batteries inside are almost dead.

Simple to use and pretty cheap. Seems to be fairly accurate. Only thing I noticed is that this one doesn't seem to have any way to calibrate it but, overall I'm fairly happy with this. I'm using it as I add minerals to my aquarium RO water.

Literally never showed a single result. Turns on but doesn’t respond to my fish tank’s water. And I know I have dissolved solids in that water.

Served its purpose. It works as it needs to and get you close to where you need to be.