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Hanna Instruments GroChek pH & TDS Combo Continuous Reading Meter

Item #: HI981404N

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GroChek pH & TDS Combo Continuous Reading Meter

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This continuous reading meter is ideal for agricultural, horticultural, and hydroponics applications where pH and TDS levels need to be continuously monitored for optimal plant growth. This instrument continuously monitors and displays the values of a solution on an easy to read set of LCDs.

The gel-filled pH electrode is replaceable and the BNC connector is protected behind a waterproof sleeve. The unique design of the electrode guarantees greater clogging resistance in fertilizer solutions with high concentrations of phosphate, nitrate, etc. TDS measurements are performed using the 4-4-2 conversion factor of 0.7 so you do not need to convert the readings.

This model is equipped with a grounding bar to ensure highly accurate pH readings and longer electrode life. It is compact and easy to install and use, making it ideal for all continuous monitoring applications.


  • Displays pH & EC simultaneously
  • Adjustable setpoints
  • Space efficient
  • Two parameters with a single instrument
  • Advanced electrode technology
  • Simple operation and maintenance
  • Ready to use
  • Includes pH electrode, TDS probe, grounding bar, calibration solutions, screwdriver for calibration, 12 VDC adapter, and instructions


Brand Hanna Instruments
SKU HI981404N
Weight (lb.) 2.3
Height (in.) 5.4
Length (in.) 7.8
Width (in.) 7.8
Warranty Yes
Free Shipping Yes

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Ships Via FedEx/UPS

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