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Martin Garcia
Reviewed in the United States on March 3, 2025
This TDS pen is simple to use and does exactly what it claims. It came with a plastic case and a small reference chart, which is a nice bonus. With only three buttons, the operation is very straightforward, making it easy for anyone to use.I bought this because I already know my water quality is bad, and I wanted a way to measure it. While I can’t verify the device’s exact accuracy, I did a basic test. I ran my tap water for a minute, collected a sample, and tested it—it read 503. Then, I tested the purified water we buy for our water cooler, and it read 7, which is well within safe drinking water limits. Based on this, I feel confident that it’s measuring what it claims to.This device won’t tell you exactly what’s in your water, but it’s a great way to gauge the presence of dissolved solids. For the price, it was definitely worth it, and I plan to test more water sources to compare results. If you’re curious about your water quality, this is a great tool to have!
CMama
Reviewed in the United States on February 9, 2025
Easy to use. Had to look online for more detailed instructions as to what the readings mean.
Brian D Alfred
Reviewed in the United States on February 28, 2025
This is my first time buying one of these as I'm new to hydroponics, but this tester has worked very well so far.
Alexander Cole
Reviewed in the United States on February 23, 2025
Is this already calibrated out of the box says it needs to be but there is nothing that comes with it
Olive Lin
Reviewed in the United States on February 2, 2025
I have a reverse osmosis water system. I used this product to measure the total dissolved solids in tap water and then the RO water. And it showed my system works fine, with 0.000 ppm. while tap water had over 150 ppm .This works. well for. people. who have aquariums , reef coral aquarium, and. freshwater shrimp tanks, which require clean pure. water with no dissolved impurities, and this. meter does a great job.Great for everyday testing,.
L R.
Reviewed in the United States on February 15, 2025
TDS meter seems very accurate - the temp meter not so muchbrightly lit display is nice and case is nice alsoinexpensive - ill keep it
R. Zdrojewski
Reviewed in the United States on January 27, 2025
Got here overnight, works great, good price.
BillD
Reviewed in the United States on January 18, 2025
Works well against several samples of water. Appears to be accurate.
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