Review on 📈 APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit - Accurate to ±0.1 pH by Robert Dingaling

I had to return my previous pH meter due to constant fluctuations and lack of calibration. It was a different brand, one of those cheap little yellow pens that everyone says works great, but not for me. Anyway, I went a bit broke and bought this pH pen. It works almost straight out of the box, just follow the instructions and calibrate the element and it works perfectly when you fill the cap with a small amount of electrode storage solution (or 4.0ph calibration solution in a pinch). It uses 4 AAA batteries, and if you're like me you have tons of batteries lying around. This pen comes with a beautiful carrying case and laminated instructions with a signed and verified certificate of authenticity. It should look like this because some water is added at the factory to keep the electrode from drying out during shipping. A little reading goes a long way. So far so good. If anything changes I'll come back and update, but for now I'm loving it!