Milwaukee Instruments MC720 PRO pH Controller and Pump Kit

The Milwaukee MC720 PRO pH controller and dosing pump kit delivers precise, automatic pH monitoring and adjustment for hydroponics, aquariums, and horticulture systems. Designed for growers, aquarists, and serious hobbyists, the MC720US ensures optimum conditions for your plants, fish, and nutrient solutions—24/7, hands-free operation.

Why Choose the Milwaukee MC720 PRO?

• Automated, real-time pH measurement and control for any reservoir, aquarium, or hydroponic setup
• Trusted by professional growers and aquarium enthusiasts
• Easy to install, operate, and maintain—ideal for daily pH regulation
• Helps prevent overdosing, nutrient imbalances, and environmental stress

User Reviews

"I run this unit 24/7 and have not had any problems for the past two months. It keeps my fish tank CO2 injector running perfectly and puts my mind at ease regarding overdosing."

"I've been using this controller for two years to monitor and adjust pH of hydroponic nutrient solutions. Still using the original probe and it rarely needs calibration."

"Using this as a pH controller for a calcium reactor on a 105 gallon reef tank ... I recommend this to any serious reefer."

Key Features

• Accuracy to ±0.2 pH with reliable two-point manual calibration
• Control range from 5.5 to 9.5 pH, with customizable high/low alarm points
• Automatic dosing via Milwaukee MP810 pump—perfectly paired with the MC122 controller
• Large, easy-to-read LCD digital display
• Simple calibration and adjustment via manual trimmers
• Comes with full mounting kit and probe holder for fast installation
• Lab-grade, double-junction, gel-filled pH probe for long service life and low maintenance
• 6.5’ probe cables offer installation flexibility
• 12 VDC power supply for safe, energy-efficient operation
• Pump delivers up to 1.5 bar (over 50 feet) of head, with a flow rate of 0.39268 GPH / 9.5 GPD
• Polyethylene uptake/discharge tubing (4.92' / 1.5 m); Norprene squeeze tube for chemical resistance

Use and Maintenance

• Maintain probe performance with regular cleaning and proper storage—use MA9015 storage solution and avoid DI/RO water
• For best results, calibrate regularly, after cleaning, and following extended storage
• Quick, routine cleaning with MA9016 solution keeps the sensing bulb and reference junction in peak condition, extending the life of your pH electrode

The Milwaukee MC720 PRO pH controller and pump kit is the preferred choice for anyone who needs continuous, automatic pH regulation for reliable nutrient delivery and water chemistry management. Set your parameters, let the PRO kit work, and focus on what matters most—growing and maintaining a thriving environment.