Hanna (HI8633) Multi-Range Conductivity MeterHanna Instruments HI8633 Multi Range Conductivity Meter Potentiometric probe technology for accurate EC measurement across extreme ranges without constant recalibration 0. 1 to 199,900 S cm Range 4 Ring Potentiometric Probe One Point Calibration PVC Construction The Hanna HI8633 solves the problem of testing water samples with vastly different conductivity levelsfrom deionized water to brinewithout swapping probes or recalibrating constantly. Its 4
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