Oakton Replaceable Electrode for pH WP 2 Pen growing-media OMRI Listed and compliant for

OMRI Listed and compliant for use in organic gardening

PhysioSpec Indoor is a full-cycle spectrum optimized for rapid growth and complete plant development

maximizing your investment in both time and money

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

Produced from materials made in the United States

Oakton Replaceable Electrode for pH WP 2 Pen growing-media OMRI Listed and compliant forThis 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