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Digital Water Quality Pen Meter

$69 $79

Looking for a low cost Water Quality pen that is both easy to use and reliable? Our GrowMasters recommend the AZ Water Quality pen.

Featuring a large LCD screen this handy meter displays Conductivity, TDS (Total Dissolved Solids) and Temperature of the water solution.

The waterproof IP65 keypad is simple to use, and the one-touch auto calibration makes it even easier to get accurate readings.

Use the hold button to freeze your readings in low light conditions.


  • Big LCD with dual display to update measuring
  • Water proof IP65 membrane keypad
  • Wide measuring range and Dual display with auto temp calibration
  • Multiple parameters to fulfill all kinds of applications
  • Auto ranging in high concentration solution
  • Calibration values are adjustable & calibration information can be reviewed
  • Quick response and easy to calibrate
  • TDS factor 0.3 to 1.0 adjustable for TDS (total dissolved solids)
  • Data hold to freeze readings
  • Easily switch the value from Conductivity to TDS

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