Help you drink pure and safe water, protect your health. Just see the number on the digital display of the PH meter when you test the liquid, no need to compare with test strips, making it more efficient and faster. Fit completely concealed in your bag or pocket for easy and casual transport. Ideal instrument for any aquarium, fishing industry, swimming pools, spa, school laboratories, food and beverage, drinking water, etc. High precision, no need for other auxiliary instruments .