The 6PFCE is our latest model in our popular Ultrameter II line. The 6PFCE features the same stability and accuracy of the 6P in conductivity, resistivity, TDS, pH, ORP and temperature measurements, but features a revolutionary new way to measure free chlorine developed through extensive bench testing at the Myron L® Company. FCE™ displays both a predictive ORP reading in mVDC, as well as an equivalent free chlorine concentration in familiar ppm. With this new feature, the 6PFCE is able to measure a dynamic range of sanitizer concentrations that is wider than the range of a colorimetric test kit. Results are easy to read, digital, numerical and require no interpretation by the user, making the 6PFCE the ideal instrument for turbid or colored solutions or when chemical interference by CYA, for example, may cause DPD or colorimeter results to be misleading.