
Aquamaster Tools pH electrode
Aqua Master Tools pH Electrode with BNC Connector
Is your pH meter responding slowly or can it no longer be calibrated? The reference solution in the sensor may have become saturated. This replaceable pH electrode from Aqua Master Tools connects directly via the standard BNC connector. Simply unscrew the old connector, attach the new electrode and your meter will be ready to provide accurate measurements again.
Double Junction Technology
Thanks to its double junction design, the reference solution is better protected against contamination. This significantly extends the service life compared to standard single-junction electrodes.
Compatible with these Aqua Master Tools meters
- H600 Pro Substrate
- H600 Pro
- P700 Pro 2
- S300 Pro 2
This electrode is also compatible with all handheld meters, pH monitors and CO₂ controllers that use a BNC connection.
Notice white powdery crystals on the glass or protective cap? Don't worry. These are dried KCl salts that have seeped out of the storage cap. This is a normal occurrence with pH sensors.
Important before first use: Soak the electrode in tap water for at least 12 hours before use. This dissolves the salt crystals and properly activates the glass membrane. After use, always fill the protective cap with KCl storage solution (do not allow the electrode to dry out or store it in reverse osmosis water).









