LabSen 213 Refillable pH/Temp. Electrode for General Water Solutions, TRIS Buffer Compatible, BNC&RCA Connector

• Proprietary sensor technology and premium materials from Switzerland
• Built with LabSen S-type hemispherical glass membrane, featuring fast response and high firmness
• No more air bubbles inside the glass membrane thanks to the Swiss blue gel electrolyte
• Long-Life Reference System improves the stability of reference electrode and extends the service life of the electrode
• Patented pH/Temperature combination structure increases the response time by 40% compared to a conventional isolated built-in thermistor

Built with proprietary sensor technology and materials from Switzerland, Apera LabSen 213 pH/Temp. Electrode is ideal for lab and field pH measurement of general water solutions.

LabSen S-type hemispherical glass membrane - low resistance and high firmness, rendering fully stabilized readings in 15 to 30 seconds, and is yet 10 times stronger than traditional glass membranes, highly resistant to general impact, eliminating the chance of accidental breakage.

Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of reference electrode and extends the service life of the electrode.

Swiss patented pH/temperature combination structure - increases the temperature response time by 40% compared to a conventional isolated built-in thermistor, accelerating ATC and the stabilization process.

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.