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4-in-1 Digital pH Meter for Water
High Accuracy Electrode
This water pH meter features a high sensitivity glass probe that provides accurate readings down to 0.01pH over the 0-14.0pH measurement range.
Color LCD Screen
Our digital TDS/pH meter features a colorful backlit LCD for easy reading, even in low-light conditions.
Durable Batteries
pH/TDS meter comes with 4 batteries for longer lasting use.
When the display value is fuzzy or unshorn, The battery should be replaced promptly.
Attention
To ensure accurate measurements, the pH meter electrode should not be immersed in the test solution deeper than the immersion line.
pH/TDS Meter Digital Water Tester
rky222k
Reviewed in the United States on March 8, 2025
Inaccurate readings, would not calibrate properly, reading move like mollassas and never settle.
CLC
Reviewed in the United States on March 17, 2025
My wife has five aquarims of various sizes and parameter needs because of different species. She is constantly checking to make sure she is within limits for each. This tester by ZKH made a big difference for her. She is really happy to have it and says it works well for her!Review for: ZKH 4 in 1 pH Meter, Multifunctional pH/EC/Temp/TDS Meter Digital Water Tester, 0.01 High Precision pH Tester Digital with ATC, TDS pH Meter for Water, Wine, Pool, Hydroponics and Aquariums 2411-054
Kaizer
Reviewed in the United States on February 25, 2025
Absolutely crucial in comforting my wife that drinking tap water here in Houston, TX is safe. It practically was the same as bottled water (it had a higher amount of dissolved minerals though), and for me is definitely worth the convenience and savings.
filmy
Reviewed in the United States on February 16, 2025
I'm impressed. Easy to check tap water and wine.
Bluewave
Reviewed in the United States on January 23, 2025
I like the idea of having one device that can measure several things, and I am fine with needing to calibrate it. However, the tester came with a half-empty battery, the calibration solution is for one-time usage and has to be used at 25C (77F) to be accurate, and the uncalibrated tester gave me a pH of 14 for our filtered tap water. The pH in tap water in my area is between 6.5 and 8.5. It looks like this tester does not have any base calibration and needs accurate calibration to function.Since the pH was so far off, I will need to get test strips to see if the other tests are accurate or if I need to calibrate them as well. To me that defeats the purpose of getting this tester. I still give it a three-star rating since it may work well after calibration and verification with test strips.
brobox
Reviewed in the United States on December 22, 2024
I have used a lot of water testers in the past...not that hard, except this one. I read the instruction over and over, it would not do a standard PH reading on my pool. I don't know what the trick is to this one, but I doubt I will take the time to lean when test strips are so easy.
loveleaf
Reviewed in the United States on November 7, 2024
I opened this item and followed instructions on calibration to the letter. There were 3 packets with different pH in each one for calibration. You are supposed to mix them and calibrate each one in order to the instructions. You put the probe in, press to calibrate, let it do it's thing. There are three that go higher and higher and it's supposed to have everything in order by the time you get to the highest pH solution.The first one read 4.3 when it should have read 4; it was close and it calibrated itself to 4. Good.The second packet was supposed to read something like 6.86 but it read 5.35. I'm thinking this thing is on a set calibration where it knows the calibrate the next one to 6.86. Nope! It calibrated itself to the closest value. So 5.35 was calibrated as 4. Now, the first solution reads somewhere around 2.5. Way off.Now my pH meter is already completely off. The 3rd packet was supposed to read upwards of 9, but it will not read over 6.5. Now I can't calibrate it because I don't have anything with a pH closest to the 9ph calibration value. Already I can't depend on the pH meter. I can't tell if it was just a junk pH meter in the first place. Or their calibration buffer packets were wrong. Either way, I have to find more calibration material to even test this.That being said, I purposefully contaminated some water with salt and the PPM meter went nuts. That functions at least.The temperature reading also seemed correct.I could not test the EC as there was no calibration material for that one. Not sure if I'll be using this for anything.
Gary Groth
Reviewed in the United States on November 30, 2024
We live in the country and have a water well as our water source. We use a water softener for household plumbing and filter our drinking water with a Brita type pitcher as well as a refrigerator with a filter. I was very interested in being able to measure Total Dissolved Solids (TDS) in both the water we drink as well as the water out of the tap in addition to the PH of our swimming pool.This probe does quick measurements of not only TDS and PH but also Electrical Conductivity (EC), which to be honest, I am no scientist, but there are plenty of websites that have charts of what safe drinking water should be measuring.I have not calibrated the probe, but the instructions that come with the probe do more to explain how to calibrate it than operate it. After pulling samples from our well, after the softener and filtered water, then letting them all get to the same temperature, I did determine that all three sources are safe to drink but do differ slightly in both PH and TDS.What I didn’t like about this probe is that the display can be difficult to read if you are not looking at it straight on and almost impossible to read outside in the sun. There is a HOLD button that will freeze the measurement until you can bring it up to eye level and read it. The probe comes with 4 small button type batteries which were 50% depleted when I first turned it on.For the price of this probe and the fact that I’m not using it for true scientific purposes I suppose it’s a nice tool to have on hand for staying on top of the quality of drinking water.
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