Reliable, Simple, and Accurate EC Measurement

The Milwaukee CD611 Conductivity Tester is designed for users who need fast, accurate, and reliable electrical conductivity (EC) measurements across a wide range of applications. Whether you’re a hydroponic grower fine-tuning nutrient solutions, an aquarist monitoring water quality, or an educator teaching essential chemistry concepts, the CD611 offers an easy-to-use solution with professional-level performance.
With a compact, lightweight design and easy one-point manual calibration, the CD611 is ideal for quick field tests and everyday use. Its precision ±2% Full Scale EC accuracy makes it a trusted tool for professionals and hobbyists alike.
Built to deliver dependable results at an affordable price, the CD611 ensures you can monitor conductivity levels confidently—helping you protect your plants, aquatic life, equipment, and processes with ease.

Why Choose the Milwaukee CD611?

• Fast, Accurate Results – ±2% Full Scale EC accuracy for dependable readings.
• Simple One-Point Calibration – Quick and easy manual calibration ensures ongoing precision.
• Compact & Lightweight – Convenient to carry for on-the-go testing.
• Long Battery Life – Up to 250 hours of continuous use with a single battery.
• Easy-to-Read LCD Display – Clear digital display for fast data interpretation.