The LabSen® 331 pH electrode from Apera Instruments is specifically designed for accurate pH measurement in wastewater, emulsions, suspensions, and effluent samples containing proteins or sulfides. Using Swiss sensor technology, this electrode features a clog-resistant hole diaphragm, a long-life reference system, and a durable POM housing for protection against harsh environments.

Key Features:

✔ Polymer Electrolyte with Hole Diaphragm – Prevents clogging and allows direct sample contact for stable, reliable readings. No electrolyte refilling required.
✔ LabSen S-Type Hemispherical Glass Diaphragm – 10 times more robust than conventional glass diaphragms, providing fast stabilization in 15-30 seconds while reducing breakage risk.
✔ Long-Life Reference System – A glass tube, AgCl, and reference silver wire improve stability and extend electrode lifespan. A cotton-filled slim glass tube prevents unwanted reactions between AgCl and electrolyte during temperature changes.
✔ Blue Gel Electrolyte – Non-flowing design prevents air bubbles, ensuring consistent, accurate measurements.
✔ POM Housing – Corrosion-resistant and impact-protected for enhanced durability in industrial and environmental applications.
✔ Swiss Sensor Technology – Guarantees high accuracy, durability, and precision for pH measurement in challenging liquid samples.
✔ Broad Compatibility – Equipped with a BNC connector, making it compatible with all pH meters that use BNC connectors, including:
✔Apera Instruments PH850, PC850, PH8500, PC8500, PH700, PH910, PC910, PH950, PC950, PH800, PC800, PH820, and PC820.

Compatibility:

Temperature Compensation: Requires a separate temperature sensor (e.g., Apera Instruments MP500) for automatic temperature compensation, or temperature must be entered manually.

Warranty:

6-Month Manufacturer's Warranty ensuring reliable performance for wastewater, emulsions, and suspensions.