Bluelab PPM Pen

• $29.95
• 1 mg
• Planetnatural.com

The Bluelab Conductivity Pen is an easy-to-use handheld meter that quickly and accurately measures if your crop is receiving the right amount of nutrients. Use to maximize plant health, prevent nutrient burn and ensure optimum plant yields. Features include selectable units for conductivity (EC or PPM) and temperature, successful calibration indicator, backlit LCD display, fully waterproof design, and a 1-year repair or replacement warranty.