pHTestr 30 - .01 pH Accuracy Temperature Display

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.

Features

• 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