Bluelab Conductivity Pen — Compact EC & temperature meter

The Bluelab Conductivity Pen is a handheld, accurate meter for monitoring nutrient conductivity (EC) and temperature, helping you maintain optimal nutrient levels to prevent burn or stunted growth.

• Measures: Conductivity (EC) and temperature
• Units: Conductivity in EC, ppm 500 (TDS) or ppm 700; temperature in °C or °F
• Display: Bright, easy‑to‑read backlit screen
• Ready to use: Factory calibrated — no setup required
• ATC: Automatic Temperature Compensation for reliable readings
• Durable: Waterproof and buoyant — floats in solution
• Form factor: Compact, handheld design for convenient, on‑the‑go use; pairs with Bluelab pH Pen for a complete measurement system