- Measures conductivity and temperature
- Selectable units for conductivity and temperature - Backlit LCD display
- Calibration optional
- Successful EC or ppm calibration indicator
- Hold reading function
- Low battery indicator
- Fully waterproof
- Auto off function
- Automatic temperature compensation

The ultimate handy solution for measuring conductivity (EC or ppm) and temperature! The Bluelab Conductivity Pen simply tells you that your plants have the right amount of nutrient in your solution and lets you know if adjustments are needed. To feed plants well, we need to know what we're feeding them. Measuring the conductivity every day is the best way to avoid over-diluting or over-concentrating your nutrient solution. The Bluelab Conductivity Pen also measures the temperature of the solution, as root health is vital to the success of a crop. Temperature affects the growth rate and structure of a plant so a solution temperature of 18 - 22 degrees celcius is recommended. To make sure the plants can get at the food, you need to measure the pH of the solution. That's w



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