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Milwaukee PRO 2-in-1 Digital pH / ORP Controller MC-125

Milwaukee PRO 2-in-1 Digital pH / ORP Controller MC-125

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Milwaukee MC125 PRO 2-in-1 Digital pH / ORP Controller



The Milwaukee MC125 PRO pH and ORP controller is designed for people looking to measure and adjust pH and ORP levels automatically with one simple controller. Just set your pH and ORP  parameters and let the Milwaukee pH Controller do the rest.

The Milwaukee PRO pH / ORP controller is preferred by people looking to dial in their testing program when they have an ongoing need to maintain levels. Common uses are nutrient tanks, aquariums, pools, and spas. 


The Milwaukee PRO pH / ORP controller offers:



The Milwaukee PRO 2 in 1 controller offers an accuracy to ±0.2 pH with two point manual calibration and ORP accuracy to ±5 mV.


Real-time monitoring

See real-time pH and ORP measurements from 0.00 pH to 14.00 pH and -1000 mV to 1000mV with a large LED with easy switching between parameters.


Automation for constant measurement

The controller provides a control range of 4 to 8 pH and -200 to 600 mV. Just set your control range and the controller do the rest.


Two dedicated relays for pH and ORP control to support a range of compatible devices

Choose your device including oxygen pumps, CO2-regulators, O3 ozonizers and other pH& ORP control devices by simply plugging the device into the correct pH or ORP outlet. 


Easy installation

The controller comes with a complete mounting kit including two probe holders.


Design features

·       Fast easy to read current results with large digital LCD readout.

·       Accurate to ±0.2 pH and ±5 mV with the user selectable high/low set points.

·       Simple two-point calibration for increased pH accuracy with manual trimmers for easy adjustment.

·       Lab grade, gel-filled, double junction pH electrode and platinum ORP electrode included for low maintenance and high performance.

·       6.5feet probe cables for extra flexibility when testing.

·       12VDC power supply.


What People Are Saying

"Irun this unit 24/7 and have not had any problems. It keeps my fish tank CO2injector running perfectly and puts my mind at ease regarding overdosing."


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