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Digital PH Pen Meter

$69 $79

Looking for a top-quality PH pen that is both easy to use and reliable? Our GrowMasters recommend the AZ waterproof pH pen.

The extensive pH measuring range (0-14) and temperature range (-5°C to +60°C) make this pen perfect for a variety of applications.

This pen features a large, dual-sided LCD screen that displays both pH and temperature readings.

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.


  • ATC (auto temperature compensation) ensures accurate readings in all climates.
  • Auto off function maximizes battery life.
  • Low cost and reliable
  • Large LCD dual display Temp. & pH value with ATC
  • One touch for auto-calibration
  • IP65 Waterproof housing
  • Automatic buffer recognition to avoid errors during calibration



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