Oakton Replacement Sensor for pHTestr 10/20/30 harvest-solutions 9% of previously lost light

9% of previously lost light while increasing lumen availability up to 300%

Coir fibers promote better aeration and drainage

quieter than conversational voice

The 5 green (1 watt) LED diodes provide a narrow spectrum of bright green light that is barely visible to plants but brighter than a normal green bulb to you

* Available in Kelvin ratings of 3k

Oakton Replacement Sensor for pHTestr 10/20/30 harvest-solutions 9% of previously lost lightExpand the lifetime of your Oakton pH tester by keeping these replacement sensors on hand. These pH testers work with Oakton's line of 10, 20, and 30 series pHTestrs (OK3563410, OK3563420, and OK3563430).