These 650 meters feature user-selectable “calibration due” alarms, automatic or manual standards recognition, and single or multiple calibration points — providing flexibility in meeting your quality objectives. The large backlit LCD shows the measured value, measured units, temperature, time, battery life, and menu options. Infrared (IrDA) wireless technology lets you easily download data without any cables.

PC 650 meters measure pH and ISE with a 0.001 maximum resolution. The PC 650 also measures conductivity, TDS, salinity, or resistivity using either a 2- or 4-electrode conductivity cell.