The Extech WQ510 Water Quality Meter measures pH, mV, temperature, conductivity, TDS and salinity. The WQ510 has 2 or 3 point pH calibration for better accuracy (4, 7, and 10pH) and automatic temperature compensation. The memory stores up to 150 readings. Readings can be captured directly to a PC via the built-in USB interface. The one point conductivity calibration automatically recognizes 4 calibration solutions. The WQ510 has an adjustable conductivity to TDS ratio from 0.5 to 1.0.
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