Panels are impact-resistant

and “tool-less” blade change for faster blade installation and removal

or retaining mulch and gravel

With its expansive surface

Displays conductivity scales of EC

Bluelab Conductivity Pen | Conductivity & Temperature on Panels are impact-resistantSimply measure conductivity and temperature with the Bluelab pen. Keep track of nutrients in your solution for healthy plants. Conductivity is automatically compensated with the integrated temperature sensor. Provides a compact, quick, and accurate way to measure two key parameters for crop health. The accurate measurement system is fully waterproof, has a backlit LCD display, selectable units for conductivity and temperature, and is calibration