- This meter features a large LCD that clearly displays the parameter being measured as well as calibration instructions.
- Calibration is fast and easy with knobs located on the front panel of the instrument.
- The HI-9813-6 includes all the features of the HI-9813-5 while incorporating our exclusive CAL CHECK™ feature.
- CAL CHECK™ allows the user to easily check the pH probe calibration status at any time
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