Bluelab Conductivity EC Pen hydroponic nutrients Low-frequency square wave technology for

Low-frequency square wave technology for stable output

fungus or if they have been exposed to under or over watering

Measurements: 16 cm W x 19 cm H

we understand that these bags can rip and become worn

8 cubic feet of tumbler volume

Bluelab Conductivity EC Pen hydroponic nutrients Low-frequency square wave technology forIntroducing The Conductivity EC Pen By Bluelab The Bluelab EC or PPM Pen provides an accurate reading of the nutrient levels in your plant's solution and alerts you when adjustments are necessary. To ensure optimal plant nutrition, it's essential to have a high quality nutrient and measure the conductivity regularly. To avoid over diluting or over concentrating the solution, it's recommended to change the entire reservoir every 7 days and add