Extech ExStik 0 to 14 pH Meter Pen

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Ph 100 Extech ExStik 0 to 14 pH Meter Pen Flat Surface pH Meter Probe, Accurate up to 0.01 pH Features Multi-application pH pen features a large digital display and a bar graph whi ch fluctuates to show changes in a particular reading Fifteen readings can be stored and recalled, and the last calibrated value is saved Meter does need to be calibrated this can be done by you it does not require that it be sent in Electrode or probe that does need to be replaced Resolution 0.01 pH, 0.1 C Maximum pH Range 14.00 Temperature range: 23°F to 194°F (-5°C to 90°C) Data hold for current reading, automatic shut-off, and low battery alert Two year warranty against manufacture defect with full replacement Show more