4 in 1 TDS Meter Digital Water Tester - Professional Testing for Drinking Water, RO/DI System, Aquariums, etc, Accurate and Reliable TDS EC & Temp(°C,°F) Meter - 0-9990ppm - New 2025

This pH meter is accurate and easy to use, it offers fast and reliable readings, and its design is practical and perfect for both beginners and more advanced use.

I bought the Digital PH Meter to monitor the water quality in my aquarium and pool, and I’m genuinely impressed by how well it performs! - **Pinpoint Accuracy**: The readings are spot-on every time. With a 0.01 pH resolution, I can trust the results whether I’m testing drinking water or my fish tank. - **Automatic Temperature Compensation (ATC)**: This feature is a game-changer! It adjusts for water temperature automatically, so I don’t have to worry about skewed readings. - **Quick & Simple Operation**: Just dip it in, stir gently, and wait a few seconds. The reading stabilizes fast and is clearly visible on the digital display. - **Portable & Convenient**: It’s compact enough to carry around, and the included case keeps it protected. I’ve taken it camping and even used it for hydroponics. - **Ready to Go**: It came pre-calibrated with batteries and buffer powders included—no setup hassle at all. Whether you're a hobbyist, a pool owner, or just want to ensure your drinking water is safe, this pH meter is a must-have.

Accurate PH meter, works better than strip PH meters, and simpler to use.

In order to get the highest resolution out of this tool you have to perform a calibration process that is likely impossible to do correctly. You will need to have "filter paper" for "sucking" the sensor and a gallon of either distilled or "RO" water (whatever that is) on hand. First you mix 3 separate acid powder packets in 3 separate containers with 250ml of water (hope you have a scale on hand to measure the weight of your water). I used plastic cups, which means the water was like 4 inches deep. Then I realized that I had to hold the sensor below the water line for 5 minutes but not too deep or the water will get into the electronics. If you screw up you have to "rinse the electrode and suck with filter paper", and start over. First you have to hold the sensor at the right level for 5 minutes and then stir the water for 10 seconds while still holding the sensor. Don't spill the acid water because you don't get any extra lives. After this you will have to push some buttons 3 or 4 times, and then you have to hold the "calibrate" button until it counts up from 0 to 5 which happens in about 0.5 seconds so good luck actually getting it to stop on 5. That part is probably tantamount to impossible. I think my best attempt was like 7.2 but I'm not sure because the number you stop on disappears immediately so unless you record with your phone in slow mo you will not know if you did it correctly. If you did do it correctly, or maybe also if you didn't, the scree, will flash with some number. If you didn't read ahead and you thought you were done and you remove the sensor from the water before the flashing stops you will have to "rinse the electrode and suck with filter paper" again and start over. That's step ONE. Now do the same thing with the medium strength acid. If you screw up any of the steps you, again, must "rinse the electrode with distilled water and suck with filter paper" and start over at step 1. Hopefully you still have the #1 acid water. If you made it this far you will again have to play the nearly impossible carnival style game of getting the calibration number to stop at 5. You will be lucky to get between 3 and 7. It is unclear how important it is to stop at 5 but if the number doesn't flash, or if you move the sensor out of the water, back to step one. So now it's 15 minutes later and you've been holding this thing at the perfect level and pressing buttons probably 20 times and started over at least a coupe times by now. Now it's time for step 3. If you complete this step correctly then your meter will be calibrated to a tolerance of about 0.01 on the pH scale. So, now go ahead and read the instructions for step three, which are "You have to make all that contains in one and two points calibration" and go ahead and get that done so that your meter will have the high resolution that you bought it for. So now you're set and your meter is calibrated? There's nothing in the "instructions" about how to test your meter for accuracy so you will just be have to trust it. I have no idea if my meter is accurate to 0.01 or to 4. It's probably a good piece of hardware but it's basically useless without proper instructions. There's also nothing useful about how to use it. Should I submerge the sensor and wait 10 seconds or 5 minutes? No idea. Unless you are a PH tool calibration professional maybe think about trying a different one because this thing is near impossible.

I recently purchased the Water Tester PH Meter, and I couldn't be happier with its performance. The quality of this device is evident right from the moment you hold it. It feels sturdy and well-built, instilling confidence in its durability. When it comes to performance, this PH meter truly shines. It delivers high accuracy with a 0.01 PH measurement range, making it perfect for a wide range of applications, from testing household drinking water to maintaining the water quality in my pool and aquarium. One of the standout features is its automatic temperature compensation (ATC), which ensures that the pH readings remain accurate even in varying temperature conditions. This is crucial for obtaining reliable results. What's more, this PH meter offers fantastic value for money. Its accuracy and ease of use make it a valuable tool for anyone concerned about water quality. It has already saved me time and money by providing precise readings, preventing any guesswork. Speaking of accuracy, I was pleasantly surprised when I compared its readings to traditional strip pH paper. The results were consistent, with a margin of plus or minus 1. But what truly impressed me was how it solved a specific problem I had with my countertop RO water system. My RO system had always indicated that it released water at 12-14 TDS, and I relied on traditional strip pH paper to check the pH levels. However, it was a hit-and-miss process. Then, I decided to put this PH meter to the test. I was thrilled to find that it was not only easy to use but also incredibly accurate. It confirmed its pH readings matched those of the strip pH paper. Knowing that I can trust this meter's readings gives me peace of mind about the water I use. In summary, the Water Tester PH Meter is a top-notch tool that delivers quality, accuracy, and value for money. It has made water testing a breeze, and it even solved a specific problem I had with my RO system. I highly recommend it to anyone in need of a reliable pH measurement device.

Works great

This meter came with very sketchy instructions. After some time on the internet, I was able to garner a better understanding of how to set the meter up properly. It also neglected to tell you that the element is very touchy and requires constant moisture. I suggest doing some research before ordering because you will want to include additional PH packets, a moisturizing solution, and some 8 oz bottles to store the calibrating solutions.

Works great!! Arrived quickly.