Bluelab pH Pen + Bluelab Conductivity EC Pen – Tested & Working

The Bluelab pH Pen and Bluelab Conductivity EC Pen are handheld probes designed for measuring the pH and conductivity levels in water. These pens are powered by batteries and feature a digital display for easy reading. The blue color makes them easy to spot in your garden or outdoor space. With waterproof capabilities and designed for outdoor use, these pens are ideal for monitoring soil moisture and nutrient levels for optimal plant health. Trusted for their accuracy and reliability, Bluelab pens are a must-have tool for any backyard gardener.