Milwaukee EC45 PRO – Waterproof EC, TDS and CF Nutrient Meter for Hydroponics

Milwaukee EC45 PRO EC/TDS/CF Nutrient Stick Meter

Fast and reliable nutrient monitoring for hydroponics, fertigation, and professional plant cultivation.

The Milwaukee EC45 PRO Nutrient Stick Meter is a practical tool for quick and easy control of nutrient solution strength. Designed for direct use in reservoirs, tanks, and fertigation systems, it measures EC, TDS, and CF, helping growers maintain optimal nutrient levels throughout every stage of plant development.

With its bright 24-LED display, the EC45 PRO provides instant visual readings without complicated operation. Simply place the meter in the solution, stir, and read the result. No buttons, no calibration, and no unnecessary setup – just fast, dependable measurements exactly when you need them.

Its extended measuring range makes it especially useful for crops with higher nutrient demands, while the IP67 waterproof and floating design ensures durability in wet growing environments. The EC45 PRO also works as a stirring stick, making daily nutrient management even more convenient.

Key Features

• Measures EC (mS/cm), TDS (ppm 500 & 700 scale), and CF
• 24 bright blue LEDs for quick and easy reading
• No calibration required – factory calibrated for immediate use
• Wide measurement range suitable for demanding crops
• Waterproof and floating construction (IP67)
• Automatic operation – turns on when immersed and off after 30 seconds of stable reading
• Can be used as both a meter and stirring stick
• Printed conductivity scales and guidance directly on the body

Measurement Range

• EC: up to 6.0 mS/cm
• TDS (500 scale): up to 3000 ppm
• TDS (700 scale): up to 4200 ppm
• CF: up to 60

Ideal For

• Hydroponic systems
• Soilless cultivation
• Greenhouses
• Indoor growing
• Vertical farming
• Nurseries and propagation
• Fertigation and agriculture
• Training and educational use

Why Choose the Milwaukee EC45 PRO?

Keeping nutrient concentration under control is essential for healthy plant growth. Too much or too little can lead to deficiencies, nutrient lockout, or wasted fertilizer. The EC45 PRO helps you check nutrient strength quickly and confidently, making it easier to maintain stable growing conditions and improve consistency in your cultivation.

Cleaning & Maintenance

To keep the meter working accurately over time, regular cleaning is recommended.

After each use:

• Rinse the electrodes with clean water to remove nutrient residue and salts.

For deeper cleaning:

• Soak the electrode end in water to dissolve deposits
• Remove the crown-shaped cap by turning it counter-clockwise
• Rinse under running water
• Gently clean with a soft brush and mild cream cleaner
• Rinse thoroughly, shake off excess water, and replace the cap

Store the meter clean and dry in its protective packaging when not in use.

Battery & Power

The EC45 PRO runs on 3 x AA alkaline batteries and offers an average battery life of up to 3 years with typical daily use. A low-battery LED indicator lets you know when it is time for replacement.

Choose the Milwaukee EC45 PRO for simple, calibration-free nutrient monitoring and keep your feeding routine under control with speed and confidence.