The Traceable® expanded range conductivity meter automatically selects the proper range and displays the exact answer without hassles. Unit fulfills requirements for CAP, ASTM, NCCLS, CLSI, ACS, CLIA, AOAC, EPA, APHA, AWWA, WEF, USGS, USP, ISO, and Federal/State regulations. Meter is designed to check the purity of water from stills, deionizers, and reverse osmosis, to test laboratory glassware rinsing, to measure total dissolved solids, and to make solutions. Simply turn on, insert probe, and simultaneously read result and temperature. Designed for routine analysis and quality control. Elimination of operator technique permits everyone in the lab to report identical readings. Tough, chemical-resistant ABS plastic housing assures a long life in severe lab or harsh plant environments. Large 1/2-inch-high LCD is easy to read. Unit permits auto-range or user selected five unique ranges. Memory stores up to five unique calibration settings, one in each range. All calibration data is saved even when unit is turned off. Backlit dual display shows answer and temperature simultaneously. HOLD button freezes the reading on the display. Computer output permits connecting to a computer.