The Senva Metering Series CT?ÇÖs Provide a High Accuracy Linear 0 V to 0.333 VAC Signal Output Proportional to the Measured Current. These can be Safely and Simply Installed to be Used with Most Power Meters, Data Loggers, and Other Instruments. Our Split-Core Metering CT?ÇÖs Come in a Range of Inner Diameter Sizes and Amperages to Accommodate a Wide Variety of Installations and Retro-Fits.