1、Measure The Value Of PH: With measuring ranges of 0.00 - 14.00 pH, which has a sensitive response and high measurement accuracy. With a PH calibration function, with calibration ranges of 4.01 / 6.86 / 9.18. With the automatic temperature compensation function, the compensation ranges from 0℃-60℃. 2、HD LCD Display: This PH meter has a large LCD display, can easily cope with various environments, which is more clear and convenient to read data. 3、Small And Portable: The mini size ph meter allows you to easily put it in your pocket, so you can take measurements anytime, anywhere. 4、Easy To Use: You just remove the protective cap and immerse the pH meter electrode in the solution and turn on the pH by "ON / OFF" switch to be measured. 5、High Capacity Battery: It is powered by 1 * 3V large capacity button battery and has long service life. 6、Wide Applications: Digital pH meters are ideal for home and laboratory testing. Very suitable for a variety of scenarios, you can use it for pH value testing of domestic water, fruit food, swimming pools, aquariums, spas, hydroponics, wine and beer, etc.