Meters for EC are really reliable. Meters within the nineteen fifties that utilize a "cat's eye" tube are still in use. More recent meters working with digital shows tend to be susceptible to failure of one or more segments on the electronic Show, ordinarily linked to corrosion throughout the instrument. https://edwinwihxg.blogproducer.com/37190426/considerations-to-know-about-soil-resistivity-testing-solutions-bangladesh