Bluelab pH & Conductivity Probe Care Kit rock-bottom These super-sized black saucers are

These super-sized black saucers are made from durable

The Grow-Cubes are a lightweight alternative to your regular potting mix

Moveable with casters

A master reservoir filled with fresh water and nutrient is located on top of the float-valve actuated Controller

"The Green Pad is the real deal

Bluelab pH & Conductivity Probe Care Kit rock-bottom These super-sized black saucers areThe instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution or soil media. If the probe face is dirty or contaminated, then the reading will be inaccurate. Accurate readings simplify crop management and provide improved growth. To re stock your pH & conductivity