Bluelab pH & Conductivity Starter Pack | pH Pen + EC/CF/PPM Pen + Probe Care Kit

Get your grow fundamentals right from day one with the Bluelab pH & Conductivity Starter Pack — the ultimate portable kit for measuring pH, conductivity (EC/CF/PPM) and temperature in nutrient solutions. Whether you’re running hydro, coco, or mixing feeds for soil, this bundle gives you accurate tools plus the care and calibration essentials to keep them performing at their best.

Everything you need in one box

Your toolbox includes the Bluelab pH Pen, Bluelab Conductivity Pen, a Bluelab Grow Book, and a Bluelab Probe Care Kit (for both pH and conductivity). That means you can not only measure the important stuff — you can also clean, care for, and calibrate your pens properly for long-term reliability.

Why pH + EC + temperature matter

• Conductivity (EC/PPM) tells you how strong your nutrient solution is (total dissolved nutrients).

• pH influences nutrient availability and uptake.

• Temperature affects plant growth rate, structure, and nutrient absorption.

Measure regularly and keep these values in the correct range to support consistent, healthy growth.

Built for growers (and built to last)

Both pens are fully waterproof (not just water-resistant), easy to use, and designed for everyday grow-room life. The conductivity pen features a flat electrode for easier cleaning, plus handy functions like hold reading, automatic temperature compensation, and auto-off to extend battery life.

What’s Included

• 1 × Bluelab pH Pen

• 1 × Bluelab Conductivity Pen

• 1 × Bluelab Grow Book

• 1 × Bluelab Probe Care Kit (pH + conductivity care and calibration)

• Grower’s wall chart (preferred pH ranges by crop type)

• 1 × AAA battery included with each pen (2 total)

Key Features

• Measures pH, conductivity and temperature in solutions

• Fully waterproof pens

• Selectable units:

  • Conductivity: EC / CF / PPM 500 (TDS) / PPM 700

  • Temperature: °C / °F

• Easy pH calibration for ongoing accuracy

• Conductivity pen flat electrode for easier cleaning

• Hold reading function

• Automatic temperature compensation

• Auto-off to extend battery life

• 1-year warranty

• Designed and assembled in New Zealand