Bluelab Probe Care Kit - Conductivity Hydoponics India The porosity of the fabric

The porosity of the fabric also allows for increased oxygen exchange in the root zone which helps stimulate rapid development

This pot measures 2-1/4" in diameter at the lip

Pack Includes 2 Bottles of 250ml solution

The probe surface is where the instrument takes the reading of the solution

Bluelab Probe Care Kit - Conductivity Hydoponics India The porosity of the fabricThe Blue lab Probe Care Kit contains everything you need to clean and test conductivity (ppm) probes. A tip: If the conductivity reads low, the probe needs cleaning. The probe surface is where the instrument takes the reading of the solution. If the probe face is dirty or contaminated, then the reading will be inaccurate. Much like the windshield of a car, if it's dirty you can't see out! If the probe face is dirty, it cannot read the solution