pH Meter for Hydroponic Water,Digital EC ppm Tester for Nutrients,pH TDS Reader 4 in 1 with 1413 μs/cm Calibration Solution,High-Sensitivity Backlit Display for Drinking Water,DWC,Indoor Plants

Probe seems to be made with good quality. Easy to use and seems to be accurate. Good value for the money.

This little gadget is mostly fantastic—until it randomly decides to take a day off. When it works (which is most of the time), it’s like having a tiny, glowing oracle for my water. It tells me everything I need to know about what I’m drinking, except the meaning of life (though I wouldn’t be surprised if it tried).That said, there have been a couple of times it just refused to give a reading, leaving me staring at it like I’m negotiating with a diva. Is my water fine, or is this how supervillains are made? Who knows?Still, for the price, it’s a solid buy and does its job—most of the time. Four stars because even unreliable friends are still friends, right?

Working way better than I expected.I use it to combine purified water and filtered spring water to get ppm from 130-150. This makes great espresso while reducing the solids being introduced into my ECM Casa V espresso machine. This practice makes my machine nearly never needing to be descaled with just enough solids to keep the purified water from leaching metal from the boiler.

Great product at a great price. Intuitive to use. Have to calibrate first. It comes with powder mix to make the 3 calibrations solutions but for under $10 I found it much easier to just buy the pre-made solutions also

Works well I think the reading are true,easy to use

5 stars well worth the extra money it works unlike the cheap 8 dollar one I picked up. This is easy to use, and I didn't need to calibrate it I had a test base of water, and it was spot-on.

This is a good tester

This is a great pH meter to use with hydroponic gardens to ensure the best growing medium. I found it to be very easy to use and accurate. The digital screen is easy to read without any confusing or extra information, and no need to try and find the right settings. The only issue that I have is needing to extract some water for testing, instead of being able to test directly in the garden due to the short length of the sensor wand. It's an extra step that seems to be pointless.My "true rating" (patent/copyright pending🤣) is 4.2 out of 5.🐻 *Statement/Disclaimer: This review is part of Amazon's Vine Program, which provides products at a reduced cost in exchange for sincere/frank reviews. The products are not offered entirely gratis, as their value is taxed as income in the US. I take pride in writing honest, accurate reviews based on many product factors. I try, use, and test all products that I provide a review. No part of this review has been constructed using AI. (Note: AI may perform small grammar and spelling corrections.) Once a review is posted, I will not alter that review for any reason, even if contact from a Vine provider has been made to rectify a negative product experience through Amazon Messaging. The opinions and statements above are my own and may not reflect others' experiences.