Ph Meter for Water, Digital PH Tester Pen, 0.01 High Accuracy with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium

Very unstable and somewhat questionable readings when compared sided by side with other methods. So disappointed with this one.

I bought this because I needed accurate pH reading for growing spirulina. This was all over the place with pH. I calibrated using packets provided and it still was not reading correctly. I was going to return it but I stead I got lazy and it's sitting on my shelf. Lesson learned. Pay a little more and don't get stuck with junk. Read reviews and pick for yourself

Got it to help propagate native plants on my property. Using it to get the best acidity to start roots. Easy to calibrate, seems to be accurate the ph goes down as I add my lemon juice.

I read and re-read the instructions for calibrating this device and never did I get the readings from the control. Clear and easy to read and it's very simple to use although inaccurate.

It works as it is supposed to. My only issue is I was expecting a meter with a LED backlight and this one doesn’t have it. Kinda disappointing.

No trae instrucciones claras de uso, vienen unas bolsitas pero no explican para qué son.

Worked great the first couple times. Always cleaned and dried after use. Will not read ph anymore.

This water tester is very easy to get the readings. Also very convenient to use. Receiving it was fast and package was perfect when it got here. I would purchase again if needed.