Bluelab Conductivity Pen – Waterproof EC, TDS & Temperature Meter | ATC | Made in NZ Milwaukee accessories The microplastic-free carbon block technology

The microplastic-free carbon block technology combined with Vitamin C and natural minerals delivers laboratory-grade water purification that protects your family's health and beauty

The NuvoH2O Evaporative Cooler Scale Preventer Puck stops this damage with a dual-action citrus + polyphosphate formula that removes existing limescale and prevents new buildup for up to 3 months

Automatic Temperature Compensation (ATC) from 0-50°C (32-122°F)

Dimensions: 20" x 4

These lab-grade 22mm cuvettes are engineered for optimal optical clarity and accurate light transmission in colorimetric and turbidity measurements with Hanna portable photometers and turbidity meters

Bluelab Conductivity Pen – Waterproof EC, TDS & Temperature Meter | ATC | Made in NZ Milwaukee accessories The microplastic-free carbon block technologyBluelab Conductivity Pen Waterproof EC, TDS & Temperature Meter An accurate and reliable conductivity (EC) and temperature pen for serious growers. The Bluelab Conductivity Pen (SKU: PENCON) measures nutrient levels and temperature to help you create the optimal nutrient environment for plant growth. Maintaining the right EC prevents nutrient burn and stunted growth keeping your crops healthy and your yields high. Factory calibrated and ready to use