Cole-Parmer WD-35431-00

Top-of-the-line dual parameter meters offer features typically found on much more expensive models! Simultaneously measure your choice of pH, mV, or ISE and conductivity Log up to 500 data points with GLP compliance Wireless IrDA communication for truly waterproof interfacing capabilities 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 Range pH -2.000 to 19.999 Range mV ±2000 Range ISE 0.001 to 19,900 ppm, molar, or mg/L Range Conductivity 0 to 500 mS Range Resistivity 0 to 20.000 Mµ Range Salinity 80 ppt Range TDS 0 to 500 ppt Range Temperature 14 to 230°F (-10 to 110°C) Resolution pH 0.1/0.01/0.001 Resolution mV 0.1 Resolution ISE 2 or 2 digits Resolution Conductivity 0.05% full scale Resolution Resistivity 0.05% full scale Resolution Salinity 0.05% full scale Resolution TDS 0.05% full scale Resolution Temperature 0.1°F to 199.9°F , 1.0°F from 200 to 230°F (0.1°C) Accuracy pH ±0.002 Accuracy mV ±0.2 Accuracy ISE 0.5% FS (monovalent), 1% FS (divalent) Accuracy Conductivity ±1% full-scale Accuracy Resistivity ±1% full-scale Accuracy Salinity ±1% full-scale Accuracy TDS ±1% full-scale Accuracy Temperature ±0.9°F(±0.5°C) Temperature compensation Automatic or manual, 0 to 100°C Buffer recognition USA, NIST, DIN, or PWB Datalogging 500 points Output IrDA/RS-232C Waterproof Yes Display Dot-matrix LCD with backlighting Power Four 1.5V AA batteries (included) or optional universal AC adapter Dimensions 3.25 in W x 7.25 in H x 2.25 in D > Each Unit Includes Data management software Probe holder Batteries Double-junction pH electrode and a 4-electrode (K = 0.3) conductivity cell