... Series includes models 11AW, 307W and 12DW meters for the measurement of conductivity in liquids The DDS-W Series includes ... models 11AW, 307W and 12DW meters for the measurement of conductivity in liquids.Features: Push-button calibration, 1 ... compensation for best accuracy under fluctuating temperaturesModelDDS-11AWDDS-307WDDS-12DW Conductivity Range0~1.999, 19.99, 199.9, 1999uS/cm ...