The pH meter is used for fast measuring liquid pH values. Features of easy operation, stable performance and accurate measurement, the pH meter is widely used in the aquaculture, fish pond, fish tank, other industrial and agricultural production and scientific research that need to test the pH value and water quality. Features: Professional pH Meter: for rapid measuring the pH value of the tested liquid. pH Value Measuring: 0.00~14.00pH measurement range, 0.01pH resolution, and ±0.1pH accuracy. Reliable Quality: high sensitivity waterproof probe smart chip for fastly and accurately measurement, and 1.5-inch LCD screen with green backlight to display the pH value clearly. Portable Compact Design: mini pen type pH meter, just powered by 4pcs LR44 button cell batteries, long term standby, and a strudy storage case is included, conveniently for carrying around and real-time measurement anytime anywhere. Wide Applications: can be used in the aquaculture, fish pond, fish tank, other