has anyone bought this ph meter? Waterproof pH Meter / Thermometer
If so, what are your thoughts on it? It says it includes Buffer Solutions pH4.0, pH7.0, and pH10.0. Would I need anything else to go with it?
Last but not least, are there any good guides for how best to make use of these readings? My understanding so far from what I've read is that I'm generally shooting for 5.2. Do you always use either gypsum or baking soda to adjust this if you are off? I looked a little bit at the Palmer spreadsheet too but that almost made my head explode looking at all those fields