Bluelab Conductivity PenThe Bluelab Conductivity Pen measures conductivity (EC) and temperature in nutrient solutions, giving a fast read on feed strength. It is a compact, reliable tool for daily strength checks across hydroponic and container growing.Use it at the reservoir when mixing nutrients or for quick checks at the plant. The fully waterproof design floats and is easy to rinse between readings.Available Options Measures conductivity (EC) and temperature Conductivity range: 0.0 to 9.9 EC Temperature range: 0 to 50 C (32 to 122 F) Battery included Key Features Fast conductivity and temperature readings Fully waterproof IP67 housing that floats Automatic temperature compensation Backlit display with hold function Ideal Applications Nutrient strength checks Hydroponic reservoir monitoring Quick handheld EC testing
