Extech WQ530

The Extech WQ530 is a 8 in 1 Benchtop Meter capable of measuring dissolved oxygen, concentration/saturation, pH, ORP, conductivity, TDS, salinity, and temperature of liquids and semi-solids. The unit features a 30 min, 60 min, and 120 min timer or continuous stirring. It also features two or three point pH calibration, one point conductivity calibration, automatic temperature compensation, adjustable conductivity to TDS ratio, and manual salinity and altitude compensation. The WQ530 features a large backlit dual display and the ability to store and recall 150 readings, as well as capture readings directly to a PC via the built-in USB interface. The WQ530 comes complete with pH glass electrode, conductivity cell, DO probe, temperature probe, four membrane caps and DO internal fill solution (30 mL), pH calibration solutions (4 pH and 7 pH), conductivity calibration solutions (1413 µS and 12.88 mS), plastic burette, polishing paper, electrode clamp and rod, software and USB cable, AC adapter and stirrer, and user manual.