I purchased this alkalinity checker for an industrial lab project and was impressed with its accuracy and reliability. The test was straightforward, and the results were consistent. It saved me a significant amount of time and INCREASED my productivity, allowing me to concentrate on other vital activities. The only downside is that it is a bit pricey, but considering its quality and durability, it's worth the investment. Overall, i would highly recommend this product for anyone in the IndustrialSee full review