Oakton Replaceable Electrode for pH WP 2 Pen growing-media It also features brown-out/black-out detection

It also features brown-out/black-out detection and timing for optimal light restart

and UVSpec provides UV wavelengths to trigger stress responses and secondary metabolite production

LIFE's water based

maximizing your investment in both time and money

increase nutrient and water uptake

Oakton Replaceable Electrode for pH WP 2 Pen growing-media It also features brown-out/black-out detectionThis part number is for a replacement electrode only, for your Oakton pH WP 2 pen (not the actual unit itself). Optimize nutrient strength during growth, flowering, and fruiting. Reliable waterproof, dustproof housing and replaceable electrode provide long life and value, meaning you won't need to invest in or calibrate another Oakton pen once you've become comfortable using yours. Replacement sensors: OK 35624 09 for pHTestr 1 OK 35624 29 for pHTestr