Milwaukee CD600 Digital Total Dissolved Solids (TDS) Pen | 0–1990 ppm Range | 10 ppm Resolution | ±2% FS Accuracy | Automatic Temperature Compensation (ATC)

Short Description

The Milwaukee CD600 is a compact digital TDS meter designed for quick measurement of Total Dissolved Solids in water and aqueous solutions. It measures directly in ppm, features automatic temperature compensation from 5–50°C, and offers simple one-point manual calibration. It is suitable for hydroponics, aquariums, water conditioning, filtration checks, horticulture and general water-quality testing.

Key Features

• TDS measurement: 0–1990 ppm
• Resolution: 10 ppm
• Accuracy: ±2% of full scale
• Automatic Temperature Compensation (ATC): 5–50°C
• Calibration: Simple 1-point manual calibration using a trimmer
• Display: Easy-to-read digital LCD
• Compact pen-style design for portable testing
• Factory calibrated and can be recalibrated when required
• Battery powered: 4 × 1.5 V alkaline batteries
• Battery life: Approximately 300 hours according to the current Milwaukee manual
• Designed for quick TDS measurements in water and nutrient solutions

Technical Specifications

Specifications above are based primarily on Milwaukee's current user manual; some older/current retailer pages report slightly different dimensions and battery-life figures, so the manufacturer's manual is the preferred reference.

Applications

The Milwaukee CD600 is suitable for:

• 💧 Drinking and process-water screening
• 🚰 Water filtration monitoring
• 🌱 Hydroponics and nutrient-solution testing
• 🌿 Horticulture and agriculture
• 🐠 Aquarium and aquaculture water testing
• 🧪 Laboratory and educational applications
• 🏊 Pool and water-conditioning checks
• 💦 General water-quality monitoring

How to Use

1. Remove the protective cap.
2. Switch on the CD600.
3. Immerse the probe into the sample up to the recommended immersion level.
4. Gently stir the solution.
5. Wait for the reading to stabilize.
6. Read the TDS value displayed in ppm.
7. Rinse the probe with fresh tap or DI water after use to minimize deposits.

Calibration

The CD600 is factory calibrated and provides 1-point manual calibration through the calibration trimmer. Milwaukee specifies M10032B 1382 ppm TDS calibration solution for the CD600.

Package Contents

Typical CD600 supply includes:

• Milwaukee CD600 Digital TDS Tester
• Protective cap
• Calibration screwdriver
• Batteries
• Instruction/user manual

Milwaukee's product documentation specifically states that the CD600 is supplied with a protective cap, calibration screwdriver, batteries and instructions.

TDS to EC Conversion

TDS readings can be approximately related to electrical conductivity depending on the conversion scale used. Milwaukee gives examples including:

• 500 scale: 1 ppm ≈ 2 µS/cm
• 442 scale: 1 ppm ≈ 1.43 µS/cm

These are approximate conversions, not universal constants, because the relationship depends on the TDS conversion factor used.

Advantages

Compact & Portable: Pen-style construction makes the meter convenient for field and routine testing.

Fast TDS Testing: Direct ppm measurement provides a quick indication of dissolved-solids concentration.

Automatic Temperature Compensation: ATC helps compensate for temperature-related changes during measurements.

Simple Calibration: One-point manual calibration makes routine maintenance straightforward.

Wide Practical Range: The 0–1990 ppm range is particularly suited to many hydroponic, aquarium, horticultural and general water-conditioning applications.