Reliable Accuracy in the Palm of Your Hand
Whether you’re growing hydroponic vegetables, maintaining a crystal-clear aquarium, or fine-tuning a water filtration system, knowing your water’s Total Dissolved Solids (TDS) level is essential. TDS readings help determine whether your water is pure, nutrient-rich, or potentially problematic – and with the Milwaukee CD600 Digital TDS Pen, you get a professional-grade tool that’s accurate, fast, and built for real-world use.
Designed for growers, aquarists, water treatment specialists, and curious DIYers alike, the CD600 simplifies what used to be a lab-only task. With a single press, it gives you immediate insight into the quality of your water – no guesswork, no hassle. From checking nutrient concentrations to evaluating filter performance, this pen-style meter is your go-to companion for portable, on-the-spot TDS monitoring.
Engineered for simplicity and durability, the CD600 is compact enough to fit in your pocket but tough enough to deliver reliable readings day after day. Whether you’re in a greenhouse, kitchen, lab, or out in the field, this tool helps ensure your water meets the right standards every time.
Why Choose the Milwaukee CD600?
- Fast, Accurate Readings
Get reliable TDS measurements in seconds, with ±2% full-scale accuracy, so you can make quick, informed decisions about your water quality. - User-Friendly Design
With a simple one-button operation and easy-to-read digital display, the CD600 is intuitive for beginners and efficient for pros. - Ready to Use
Comes factory-calibrated with a 1413 µS/cm calibration solution and includes a protective cap and batteries – everything you need to get started right away. - Portable & Durable
Designed for one-handed use and built to last with a rugged ABS housing, the CD600 goes wherever you go. - Versatile Applications
Ideal for hydroponics, aquariums, reverse osmosis systems, water treatment, environmental testing, beverage production, and more.


