The Bluelab Grower’s Toolbox combines the essential tools you need to easily manage your crop by measuring the pH, conductivity (ppm) and temperature of the nutrient solution. These pens make it easy to measure the nutrient uptake (pH), the amount of nutrients available (ppm) and the solution temperature, so you can create the best nutrient environment for your plants’ growth. The Bluelab Probe Care Kit makes maintenance easy to maximize the life and accuracy of the pens probes. Includes hepful Grow Book PPM Conductivity Pen Features • Display options available in °C, °F, EC, CF, ppm 500 and ppm 700. • Selectable units for conductivity and temperature • Backlit LCD display • Calibration optional • Successful calibration indicator • Hold reading function • Low battery indicator • Fully waterproof • Auto off function • Automatic temperature compensation PH Pen Features • Measures pH and temperature • Selectable units for °C & °F • Backlit LCD display • Double junction probe (not replaceable) • Successful pH calibration indicator • Hold reading function • Low battery indicator • Fully waterproof • Auto off function • Automatic temperature compensation
