Bluelab Conductivity Pen (EC or ppm)

With the Bluelab Conductivity Pen (EC or ppm) you'll never have to guess your nutrient concentration again. This is the ultimate solution to measuring EC or PPM, along with temperature, and dialing in your nutrient solution for explosive growth and heavy yields. Dial In Your Nutrient Solution With The Bluelab Conductivity Pen (EC or ppm) Even if you follow your feeding schedule perfectly, it's still important to double-check your work by using the Bluelab Conductivity Pen (EC or ppm). It will prevent you from underfeeding and overfeeding your plants, and result in healthier, more potent, heavier yielding plants. Its also important to be aware of the temperature of your nutrient solution. If your water is too warm or too cold, your roots will be susceptible to issues like stagnant growth or root rot. We recommend feeding your plants at 65 - 72 degrees F. To make sure the plants can get at the food, you need to measure the pH of the solution. Check out our handy Bluelab p