Where your growing season never ends!

pHTestr 20 — .01 pH Accuracy *ATC (Automatic Temperatu


SKU: OK3563420 Category:


Optimize nutrient strength during growth, flowering, and fruiting by knowing exactly what is going on with your plants. Use the Oakton pH tester with accurate ATC to get instant at-a-glance readings.


  • Reliable waterproof, dustproof housing
  • Replaceable electrode to provide long life and value
  • Auto shutoff conserves battery life
  • Large display screens

Replacement sensors:

  • OK-35624-09 for pHTestr 1
  • OK-35624-29 for pHTestr 2
  • OK-35653-01 pH 4.0 calibration solution

Additional information

Weight 0.2500 lbs
Dimensions 7.500 × 2.700 × 1.900 in