LabSen 843 Refillable pH/Temp. Electrode for Strong Alkaline Solutions and High Salinity Solutions, BNC/RCA Connector

• Robust Swiss HA-type glass membrane designed for strong alkaline solutions and high salinity solutions, minimizing alkaline errors.
  
• Silver Ion Trap Reference System - On top of the Long-Life reference system, a silver ion trap is added to further prevent junction clog.
• LabSen's sturdy glass membrane, 10 times stronger than traditional glass membranes
• The blue gel electrolyte eliminating the chance of any air bubbles inside the sensor
• Built-in temperature sensor for automatic temperature compensation

Backed by proprietary sensor technology and premium materials from Switzerland, Apera LabSen 841 Glass pH Electrode is designed for high-precision pH measurement of strong alkaline solutions (12 to 14 pH) and high salinity (>5000ppm or 0.5%) solutions.

Robust LabSen HA Glass Membrane – the special type of membrane minimizes alkaline error down to 3 mV in strong alkaline or high salinity solutions.

Built tough – The hemispherical glass membrane is 10 times stronger than traditional glass membranes, highly resistant to general impact, saving the electrode from accidental damage.

Silver Ion Trap Reference System – On top of the Long-Life reference system, a silver ion trap is added to further prevent junction clog.

Compatible with all Apera Instruments meters with BNC and RCA connectors such as PH910, PH9500, PH850, PC8500, and PH820. May NOT work with other brands' meters because the thermistor might be incompatible.