Etekcity® 0.1 pH High Accuracy Pocket Pen pH meter meter, pH Handheld Pen Tester, 0.00 -14,00pH measuring range, 0.1 pH resolution for action Budget drinking water, aquarium pool water (Misc.)
Because different devices are offered here, it should be mentioned that my review is from the pH meter of Etekcity. I live on a Spanish island and also run a pool. Always late February to early March they should change the pool from winter mode to th