1. Water quality tester with high accuracy This PH meter receives the result quickly and accurately. ph measuring device has a measuring range of 0.00 to 14.00pH, an accuracy of 0.01 pH.^ 2. Fast and accurate High quality pH meter for quick calibration and very precise measurement results. Simply remove the protective cap and immerse the electrode in the solution to be measured for one minute.^ 3. ATC function Automatic temperature compensation automatically takes temperature changes into account to ensure accurate readings at different temperatures.^ 4. Portable measuring device with LCD display Handheld pen style makes it conveniently fits in your pocket or pocket and goes anywhere. The LCD display shows the result within seconds, no need to work with color cards or messy test strips.^ 5. Versatile applications Ideal digital pH meter for aquariums, fishing, pools, swimming pools, school laboratories, rivers, aquacultures and other liquids.