Double Junction, refillable glass electrode with BNC connector and 1m cable. Replacement for the electrode that is included with the Milwaukee MW151 MAX pH/ORP/Temp Logging Bench Meter. The electrode is the consumable portion of the pH meter which actually makes the measurement. All pH electrodes wear out over time and must be replaced. If your meter is having trouble calibrating or the reading drifts then a bad electrode is the likely culprit.

Milwaukee Part Number: MA917B/1