APEC TDS Meter Digital Water Quality TDS Test Kit Meter with Carrying Case, 0 to 1999 ppm Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy

Simple and effective, I was able to read particles through the reverse osmosis system in my house, the water softener treated one, the distilled one from the store, and the water from my well.All of them showed readings from what I expected to receive. My friends have used it too and they are now getting reverse osmosis installed as well.

Great

Everything tests out at 30-37 ppm. I did not believe that all our drinking water was that low! So.....I bought some 300+ ppm control and it tested out fine. I then made my own 1000+ ppm control and it tested fine. I will add to this review as I am going to compare numbers from a different tester using controls that I know. So far so good A nifty little tester. I give 4 stars because I would like to see an appropriate vial of control INCLUDED in the packaging. Very low cost and the buyer could see the calibration of , say, 1000 ppm and compare to their readings of household drinking water and stored emergency water. Overall I would recommend this to buyers.

Make sure to test water of equal temperatures when comparing them.For fun I tested hot and cold, expecting the same results, but to my surprise, they were markedly different. I was initially confused as to how my hot water (104.2 degrees) would read 109 and my cold water (64.4 degrees) read 62, but figured out it was in fact due to the difference in temperature and nothing else. After setting a glass of each on the counter and letting them both equalize to room temp, they bold read 68 TDS.I would venture a guess that the increased temp makes the ions move more quickly, causing the meter to miss read the levels. I would like to know what temp is ideal for the most accurate reading, but, at least I do know you can make an apples to apples comparison if the temps are the same.Also, did some testing on my standard Brita filter. Tap water was 68, one pass 28, second 19, third 14, fourth 12, fifth 12 again, sixth... you guessed it, 12 again. Thought it was interesting, and maybe someone else will as well.Easy to use, easy to read, and as far as I can tell it seems to be accurate but lack the instrumentation to verify that. I just know it read levels out as expected (numbers went down with filtration each time) and that was good enough for me!

Definitely works. I tested my tap water and we had a whopping 496ppm! I knew it was bad but not that bad! So nervously tested my RO water system a bit earlier than I should have (I was still emptying out the first tank) and it came down to 28ppm! After a full water cycle it was down to 22 in the RO filtered water, I was so happy my RO system was doing excellent work (also from APEC). Now my relatives want me to test the water at their place lol.

This tool seems to open your eyes on what is available for public water in The U.S. Wow, just the water has so much garbage in it. No wonder so many people have bad health. The water then the garbage in food. Wow over 300 on our Phoenix Arizona city water. After comparing to reverse Osmosis system it read 11. The readings will be off unless wiped between readings. You might want to take this every where to test what you put in your body to turn to blood to nourish our body.

Very easy to use. The only reason I gave 4 star is it doesn’t give you a list of what the TDS amounts mean. I had to look it up on line

Pratice

Mide la cantidad de solidos disueltos en el agua. Se supone que el agua para beber debe tener entre 300 y 500 TDS para ser aceptable, y menos de 300 TDS es excelente. El agua e-pura por ejemplo, marca menos de 20 TDS, el agua de la llave en mi colonia marca 370 TDS. Atención! este aparato no mide la pureza del agua, solo la cantidad de solidos disueltos, no puede asegurarte que tu agua no contenga bacterias o viruses.

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