Review on 📈 High Accuracy Digital pH Meter with ATC Tester - 3 in 1 Pen Type for Water, Wine, Spas, Aquariums - 0.01 pH Resolution, TDS & Temp Measurement by Lisa Chandler

There are cheaper and smaller pH pen testers out there, but they're not as cool as this one. I bought it to check the pH in my pool (and aquarium) and got great results in just a few seconds. Just push the button and I get my reading instantly. Supplied with protective case for tip and buffer powder. I don't use buffers and still get pretty tight readings. Now that I have it, I check my drinking water too! It would be better if it also came with a bag or storage case. Nice comfortable product. Overall reliable quality and amazing value for money.