PH electrodes have a finite lifespan due to their inherent properties. How long a pH electrode will last will depend on how it is cared for and the solutions it is used to measure. Even if the electrode is not used, it will still age. Fast response, reliable and accurate measurements. Water testers are in high demand for measuring parameters used to investigate water quality associated with environmental, public health, or commercial issues. There are hundreds of water quality testers to select from, each with varying specifications and functions. This confusion can make finding the best device for your needs a difficult task. To save time and worry, Instrument Choice Scientists regularly spotlight superior brands and products. All models feature IP67-rated waterproof housing that helps protect your investment. Models feature sizeable LCD screens that facilitate the simultaneous viewing of pH or conductivity, together with temperature. Ensures temperature does affect the accuracy of your water quality measurements. Three multifunction buttons intuitively guide you through measurements and calibration. The data hold function allows you to freeze the screen of your most recent measurement, which makes recording and communicating your results a snack. Retrieves the highest and lowest recorded measurements, which supports benchmarking.