All-New 2024 pH Meter for Water - High Accuracy Digital pH Tester (Accuracy 0.01) UL Listed and 3 pH Calibration Powder, Ideal for Home Water, Hydroponics,

Didn’t survive long

Followed directions exactly and they were somewhat complicated. But the item did not work properly. It gave false readings to a know ph value water source. Checked with another known value with the same results. Simply put, this is a piece of junk.

Easy to operate but hard to calibrate, no worries it will get you close without that . Works good

Útil y funcional

Granted my expectations weren't all that high for this inexpensive meter, which does claim to arrive factory-calibrated. But I like to do my best to calibrate them when they arrive. My other digital pH meter uses manual calibration; it has a little screw on its back which can be adjusted with a screwdriver, for very precise calibration. This one is, to say the least, not so easy to calibrate. Firstly it doesn't even behave like the instructions say it should. It took quite some cajoling to bring it anywhere near 6.86, but when it finally did, I pressed down on the CAL button like the instructions said. They said it would begin flashing "6.86" It did not. Instead it began flashing all sorts of other random values. So I removed it from the 6.86pH beaker, dipped it into some distilled water, and it turned itself off! So I was forced to start the calibration process all over again. This is my first experience with digital calibration of a pH meter and boy does it suck. I am not a fan. Due to the logarithmic nature of the pH scale, precision is much more relevant the closer to neutral you get, which makes me question the factory calibration on these things. As I said, I wasn't expecting supremely high quality, but this is just... really not great. A simple potentiometer-based means of calibration could've made this product much better.