1300 662 720

Customer Support

1300 662 720

Customer Support

1300 662 720

Customer Support


pH / ORP Controller

Currently Out of Stock, Backorder only! This item may take 3-4 weeks to deliver. Call us on 1300 662 720

    • 0 $

$ 340.00 Ex. GST


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With Milwaukee’s MC Controllers you can monitor and control pH and/or ORP levels.

The Milwaukee Instruments “MC” Controllers have a user selectable set point and a visual “Power Activated” LED notification light. Power to the controller box is turned on when the reading is Above or Below ( user selected ) the selected set point. These MC Controllers are ideal for CO2 or ozone dosing.

With each Milwaukee Smart controller, your aquarium will have the individual attention that it needs.

Each unit comes with 12 VDC adapter, mounting kit, probe, probe holder and starter calibration solution for pH. (factory calibrated for ORP)
Smart Professional pH/ORP controller.

  • User selectable Hi/Low Set Point
  • Manual 2 points calibration
  • Visual LED alarm
  • Supplied with 12 VDC adapter and mounting kit
  • 1 power plug for CO2 dosing and 1 power plug for O3 dosing
  • Double junction pH electrode and platinum ORP electrode (BNC connector)


MC125 is supplied complete with MA9310 12 VDC adapter, power plug socket for ozone dosing, MA911B/2 pH electrode, MA921B/2 ORP electrode, 20 mL pH7.01 sachet of calibration solution, calibration screwdriver and instructions.

Learn More about pH in Here.

pH Range 0.00 – 14.00 pH
ORP Range ± 1000mV
pH Resolution 0.01 pH
ORP Resolution ± 1 mV
pH Accuracy ± 0.2 pH
ORP Accuracy ± 5 mV
Calibration Manual 2 points
Alarm Active when reading is higher or lower than set point
pH Dosing Contact 1 power plug for CO2 dosing
ORP Dosing Contact 1 power plug for O3 dosing
pH Electrode MA911B/2 (included)
ORP Electrode MA921B/2 (included)
Environment 0 to 50 oC / 32 to 122 oF; max RH 95%
Power Supply 12 VDC adapter (included)
Power Drivers 115 VAC, 2A, 60Hz or 230 VAC, 1A, 50Hz
Dimensions 148,5 x 82,5 x 32 mm
Weight 180 g (meter only)

Instruction Manual

MA955 – Solenoid Valve for CO2 dosing