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HI 9813-6 : pH /EC/TDS meter (4.00 mS, 1999 ppm) with °C range, Clean & Cal

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Item #: HI9813-6
Reg. Price: $205.00
Our Price: $205.00
DescriptionSpecifications/More DetailsShipping SpecsDownloads

HI 9813-6 is a versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries.

  • Water resistant
  • On-screen tutorial messages for calibration
  • Exclusive CAL CHECK™ feature; Alerts users of calibration status
  • BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings
  • Switch parameters at the touch of a button
  • Automatic Temperature Compensation for pH and conductivity
  • Simple calibration; Dials located on the front panel makes calibration quick and simple, even for non-technical users
  • Battery % displayed on startup
  • Fast response multiparameter probe


This meter features a large LCD that clearly displays the parameter being measured as well as calibration instructions. Calibration is fast and easy with buttons located on the front panel of the instrument.


HI 9813-6 includes all the features of the HI 9813-5 while incorporating our exclusive CAL CHECK™ feature. The CAL CHECK™ feature allows the user to easily check the probe calibration status at any time. The meter includes the HI 1285-6 probe that features a fiber junction and gel electrolyte making it ideal for fertilizer solutions. When used in conjunction with the HI 1285-6 pH/EC/TDS/temperature probe and HI 50021 check solution, the HI 9813-6’s CAL CHECK™ feature allows the user to check the meter calibration status at any time with a simple procedure.



  1. Rinse the probe with water.
  2. Immerse the probe in HI 50021 check solution.
  3. Press the Check key.
  4. If the meter is calibrated “Probe is OK” message is displayed.
  5. If cleaning is needed “Clean Probe and Calibrate” message is displayed.
If cleaning is needed just immerse the probe in HI 700661 cleaning solution for 5 minutes, rinse the probe and check again. Calibration is needed if “Clean Probe and Calibrate” message is displayed is displayed a second time.


HI 9813-6 is supplied with :

  • Combination probe with 8-pin DIN connector & 1 m (3.3') cable HI 1285-6, pH/EC/TDS/°C with Cal-CheckTM for HI 9813-6
  • HI 70007 pH 7.01 sachet, 1 pc
  • HI 70031 1413 μS/cm (1.413 mS/cm) sachet, 1 pc
  • HI 70442 1500 ppm sachet, 1 pc
  • HI 700661 cleaning solution sachet, 2 pcs
  • HI 50021 check solution sachet, 2 pcs (for HI 9813-6 only)
  • Instruction manual
  • 1 x 9V alkaline battery

Other Items In This Category

SKUItem Price 
HI50021P HI 50021P : Check solution, 20 mL, 25 pcs (for HI 9813-6 only) $32.00 More Details


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