Bluelab Conductivity EC Pen hydroponic nutrients Measurements: 16 cm W x

Measurements: 16 cm W x 19 cm H

the easy-to-follow calibration process is the same for all Bluelab pH meters and pens

All food-safe 304 construction

Low-frequency square wave technology for stable output

Bluelab Conductivity EC Pen hydroponic nutrients Measurements: 16 cm W xIntroducing 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