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World class multiparameter water quality testing probes now include built in data logging capabilities Envirotech Online
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Resource independence: Water quality testing as a reflection of Potawatomi ways - Potawatomi.org
Professional PH Chlorine Meter CL2 Measuring Water Monitor with Probe for Swimming Pool Spa Water Quality
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Water Monitoring & Testing Probes and Equipment - AquaRead
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YSI ProDSS Multiparameter Water Quality Meter - Rent or Buy