Calcium logger sensor NUL-238 June 26, 2014UncategorizedEinat Calcium logger sensor NUL-238 The NeuLog calcium sensor enables measurements of ionic calcium (Ca2+) concentration in aqueous samples. This measurement is very important when evaluating water quality. It can also be used to determine calcium – magnesium by EDTA titration. Specifications: Experiment Duration: 1 second to 31 days. Logger sensor Guide