Meter measures temperature, salinity, TDS, conductivity, and resistance and exceeds USP 24 specifications. Resistance ratio technology (RRT) compares the resistance of the sample to a calibrated resistor within the meter for unmatched accuracy. Store up to 100 points; RS-232 interface for data access. The microprocessor-based instrument offers linear and non-linear temperature compensation options—great for ultrapure water analysis. High and low alarms can be programmed for process applications. Order conductivity cell separately.