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Instruction Manual
Instruction Manual


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)

Professional pH controller especially designed for use with aquariums.
  • User selectable Hi/Low Set Point

  • Manual 2 points calibration

  • Visual LED alarm

  • Supplied with 12 VDC adapter and mounting kit

  • Power plug for CO2 dosing

  • Double junction pH electrode with 2m cable (BNC connector)

Double junction, gel filled pH electrode with BNC connector, with 1 meter cable

Calibration, Maintenance & Cleaning Solutions
Choose from our wide selection of calibration, maintenance and cleaning solutions.
Range 0.0 - 14.0 pH
Resolution 0.1 pH
Accuracy ±0.2 pH
Set point pH 5.5. to 9.5 pH
Calibration Manual 2 points
Alarm Active when reading is higher or lower than set point
Dosing Contact
1 power plug for CO2 dosing
pH electrode
MA911B/2 (included)
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)


MA911B/2 Double junction, gel filled pH electrode with 1 m cable
M10004B pH 4.01 buffer solution 20 mL sachet (25 pcs)
M10007B pH 7.01 buffer solution 20 mL sachet (25 pcs)
M10010B pH 10.01 buffer solution 20 mL sachet (25 pcs)
MA9015 Electrode storage solution 20 mL sachet (25 pcs)
M10000B Electrode rinse solution 20 mL sachet (25 pcs)
MA955 Solenoid valve with 1.5 m cable
MC122 is supplied complete with MA9310 12 VDC adapter, MA911B/2 pH electrode, 20 mL pH4.01 sachet of calibration solution, 20 mL pH7.01 sachet of calibration solution, calibration screwdriver and instructions.

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