Milwaukee MA911B/2 - Replacement pH Probe - For MC110 / MC122

Replacement probe MA911B/2 – Glass pH electrode for Milwaukee MC110 / MC122

The MA911B/2 probe is a high-precision glass pH electrode filled with electrolyte gel, designed to be used with Milwaukee controllers MC110 and MC122. Ideal for continuous pH monitoring in hydroponic tanks, aquariums, or irrigation systems, it ensures reliable and stable readings over time.

✅ Use and maintenance

• Protective cap included with storage solution to preserve the electrode between uses.
• Crystallized residues around the electrode: normal phenomenon – a simple rinse with water is enough to remove them.
• Recommended vertical storage with a few drops of preservative solution in the cap.
• ⚠️ Never store in distilled water, this reduces the lifespan of the electrode.

🔧 Calibration and cleaning

• Perform regular 2-point calibration (pH 4.0 and pH 7.0 solutions) to ensure measurement reliability.
• In case of loss of accuracy, soak the electrode in a cleaning solution to restore its performance.

Thanks to its standard BNC connector and 2-meter cable, this probe easily integrates into your systems and offers great placement flexibility in tanks.