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Extech Digital Display Multimeter

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Built-in stirrer with 30, 60, and 120 minute timer or continuous operation
Large backlit dual LCD simultaneously displays measurement and temperature
2- or 3-point pH calibration for better accuracy (4, 7, and 10-pH)

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Measure pH, mV, and temperature. Built in stirrer with 30,60, and 120 minute timer or continuous function. Manual store and recall 150 readings and transfer them to a pc via USB. Complete with pH glass electrode, pH calibration solutions (4 and 7pH), temperature probe, electrode clamp and rod, software and USB cable, AC adapter and stirrer; WQ510/WQ530 also include conductivity cell, conductivity calibration solutions (1413µS and 12.88mS); WQ530 also includes DO probe, plastic Lurette, polishing paper, 4 membrane caps and DO internal fill solution (30 mL).

Built-in stirrer with 30, 60, and 120 minute timer or continuous operation
Large backlit dual LCD simultaneously displays measurement and temperature
2- or 3-point pH calibration for better accuracy (4, 7, and 10-pH)
Automatic temperature compensation
Memory stores up to 150 readings
Complete with pH glass electrode and calibration solutions, temperature probe, electrode clamp and rod, software and USB cable, and AC adapter