Bluelab Conductivity Pen
This high quality EC pen tells you the electrical conductivity (nutrient strength) of the solution in your tank. Following our general weekly dosing instructions should maintain an optimal ec range of 1.5-2.5 for most cases, but if you want to take your growing to the next level and confirm that your plants are having their specific needs more closely met, using this pen to monitor and dose your tank is the best way to do so. If you notice your tank is out of range, follow our instructions here.
Discounts, promotional codes, and special offers do not apply to this product.

Bluelab Conductivity Pen
This high quality EC pen tells you the electrical conductivity (nutrient strength) of the solution in your tank. Following our general weekly dosing instructions should maintain an optimal ec range of 1.5-2.5 for most cases, but if you want to take your growing to the next level and confirm that your plants are having their specific needs more closely met, using this pen to monitor and dose your tank is the best way to do so. If you notice your tank is out of range, follow our instructions here.
Discounts, promotional codes, and special offers do not apply to this product.
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