Bluelab EC Pen - Temperature Compensated Digital EC Tester Beneficial Inoculants The CO2 Analyser detects levels

The CO2 Analyser detects levels in the surrounding air and feeds the information back to your Controller

steady and consistent

Swell is formulated with nutrients that help to push plants to their limits during the final weeks of flower

Keeping your nutrient strength meter calibrated is essential for taking accurate readings

Designed for soil and coco

Bluelab EC Pen - Temperature Compensated Digital EC Tester Beneficial Inoculants The CO2 Analyser detects levelsBluelab EC Pen Temperature Compensated Conductivity Tester A meter to measure the strength of your nutrient solution is one of those really necessary items for enthusiastic hydroponics growers. Bluelab's EC Pen features the same robust build quality, accuracy and reliability that make Bluelab testing equipment the default choice for growers across the world. How the Bluelab EC Pen Works The Bluelab EC Pen measures the electrical conductivity of your