Milwaukee MA911b/2 PH Electrode, 2 m Cable

This probe was specially developed for lab use. MA991b/2 is a pH measuring probe with a spherical glass tip and glass sensor. The impact-resistant, robust casing is made of artificial resin and is easy to clean. The probe has a temperature resistance of -5 to 70 °C (temperature measuring devices are NOT included). It comes with a 2 m long cable and a BNC plug.

This probe requires less maintenance than conventional probes because it has a dual connection point which reduces the risk of getting clogged due to deposits. The special glass tip ensures a large surface area during measurement which results in quick and extremely accurate test results.

To continue to get accurate measurements over time, the manufacturer recommends regular maintenance of the probe.
1. Always store the cap in a buffer or storage solution, never in tap or DI water.
2. Clean the probe regularly with a cleaning solution.
3. After cleaning and/or storage, calibrate the probe prior to testing. This reliably compensates for changes in the pH sensor.

Note on natural wear and tear: Glass bulbs lose their sensitivity with use and will eventually fail. This is true of all pH probes. However, regular care as described above will extend the functionality considerably.