High Quality & Durable PH Tester: It is highly accurate for 0-14 PH measuring range, 0.01 PH resolution, working temperature: 0℃~50℃; Measures and displays pH result simultaneously with LCD display, reliable reading and r Easy to Use: You just need to remove the protective cap and immerse the pH meter electrode into the solution and turn on the PH by the "ON/OFF" switch to measure. No need to work with color charts or test strips; A large LCD screen makes it easy to read. Multiple Application: The pH meter could be widely used: testing the pH value and quality of drinking water, aquariums, swimming pools, spas and wine, tap water, well water, sea water, amniotic water, breakthrough, aquaculture, food processing, saliva, enzyme, chemical experiment, ionized water, human urine pH value and so on. It helps you distinguish the water quality in daily life. Convenient Design - Large LCD screen makes it easy to read the measurement results. Pocket size for easy carrying.