Yewhick Digital pH and TDS Meter Combo, High Accuracy 0.01 Water Quality Tester and 3-in-1 TDS and EC Meter, PPM and µS Meter for Water, Practical Water Testing Kit

This thing is awesome the backlight. Ing even changes colors whenever the p h is dropped between acetic base or alkaline.

As soon as I saw this available, I had to order it. For me, having a device that can test the ph and accuracy of the water you drink daily is essential. As soon as I received the package, I went straight away to test it. I found that my drinking water is ever so slightly above 7. It was a relief to prove that my water filter works as advertised. The reading also comes in a colored view. If the water was extremely acidic, the color of the display would be red. Since it was almost perfectly balanced, the color was blue. I like that the main device has this feature. I also tested the accuracy of the water. Turns out I have healthy filtered water by using the manual and the accuracy chart. I would have liked it better if the display was colored like the ph device, but that's merely my preference. Now that I have this kit, I can test everything that I drink. I plan to hold on to this kit as long as I possibly can. Everyone should know what kind of liquids they expose themselves to daily. My recommendation: buy it asap. If you learn something about what you drink, you give yourself information that can help you make better choices. 4/5 stars easy.

Both ph meter & tds meter both are inaccurate & ph meter will not keep an accurate reading no matter how many times you try to calibrate.!

Bought this to keep an eye on my pool Ph and compare with the test strips. Once calibrated it seems to do a good job. It's a bit tricky to get setup though. I had to get some distilled water to test with and then i could compare the pool and our drinking water and the filtered fridge. It's definitely more accurate than test strips but I'm not going to stop relying on those anytime soon since it's much easier to check.

Make sure you have distilled water when you use this or any other pH meter. Calibration is recommended before use and the probe needs to be rinsed with distilled water after use. The pH meter should be calibrated prior to use. As a test, I read the pH of a water sample before calibrating the meter. It read 7.22. After calibration, it read 7.10. Recalibration is not required under most circumstances, but the instruction pamphlet does tell you to mark the buffer solutions that you made so you can recalibrate later. Unfortunately, there is no mention of shelf life or storage conditions for your buffers. The powdered chemicals to make the buffers are included, but you're going to need 1 to 3 cups of distilled water to dissolve them in. After calibration, you're good to go and just have to follow the use and maintenance instructions. The pH meter takes a little while for the reading to stabilize. That's pretty standard for devices that test water. The second meter in this kit is for TDS (Total Dissolved Solids), EC (Electrical Conductivity), and temperature in °C and °F. The temperature function is probably the most useful feature of this probe. This probe is low maintenance, just requiring you to clean the electrode after use and replace the cap. As for cleaning the electrode, I just fold up a paper towel into a little point and twirl it around each electrode rod. If I were putting the sensor in something dirtier than tap water, I'd also rinse it off before drying it. Technically, I should probably be washing the electrodes with distilled or DI water after each use (that's from my previous experience with meters like this, not that the instructions say to do so), but for everyday noncommercial household purposes, I'm not going to be bothering to do that. Temperature is correct. TDS is at least in the correct ballpark although I have no way of saying exactly how accurate it is. I'm not sure about EC. The temperature reading changes continually, but the TDS reading will stay on the meter even after you remove it from the liquid which can make reading your result much easier. Overall, I'm happy with the ease of use and quality of these meters. Readings are accurate according to litmus paper and testing of the buffer solutions after calibration. I ordered this set because I'm getting into hydroponics and aquarium set-up and you really should know pH for both of those.

My wife recently decided to dive into the world of alkaline water, and the YehwicK Digital pH Meter looked like a handy tool to have. It's been a solid addition to our kitchen gadgets, giving her the peace of mind that the water we're drinking is just right. The devices themselves (there are 2 devices here) are pretty impressive, offering not just pH testing but also TDS, EC, and temperature readings, making them versatile instruments. My wife finds it quite reassuring to know the exact quality of her water before taking a sip. However, it's not without its quirks. The instructions could use a magnifying glass, printed so small that you'll find yourself squinting. We managed to figure it out, but it took a bit longer than expected.

I first checked the TDS value of my tap water and it gave me a 24ppm. I had checked the water with a TDS meter my friend lent me a few months ago and it was 25ppm. I take this to mean that the values from this TDS meter is pretty good and my tap water is pretty good too. My EC at 22.1C was 52, which I think is pretty good too. My understanding is that you are suppose to compare EC values at 25C, but that's for the experts to do. I just want an idea of the quality of my water. I tested the PH meter with vinegar and my PH paper strips and the PH meter seems to be pretty accurate as well. There is a calibration process for the PH meter, but for now I'm comfortable with the values I'm getting. This is an easy to use and helpful test kit for a very reasonable price point.

Used this instrument(s) to get PH reading of water in my spa. After pushing the temp/cal button several times on both units to get a consistent reading, I finally figured out that one click gives you the temperature and a second click gives you the PH (acidity level) value. Acceptable PH range for a spa is 7.2 to 7.8. The meter indicated a value of 7.54 and 7.6. Spa temperature indicator showed 93 degrees and both tasters showed readings of 94. Batteries are difficult to get to. Instructions are not complete and I needed a strong magnifier to read the tiny print.