APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301);
APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301)

The Apera 201-C Combination pH Electrode is an economical choice for a reliable combination pH electrode. Ideal for regular water solutions' pH measurement in scientific research, environmental monitoring, and quality con...

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The Apera 201-C Combination pH Electrode is an economical choice for a reliable combination pH electrode. Ideal for regular water solutions' pH measurement in scientific research, environmental monitoring, and quality control.

Measurement Range: 0–14 pH, 0–80˚C (32–176˚F); Housing: Polycarbonate; Junction: Single Ceramic; Reference Electrode: Ag/AgCl; Connector: BNC; Size: ø12*160 mm; Cable: 3 Ft

Not suitable for testing in low-ion concentration solutions (eg: deionized water or distilled water), strong base solutions (pH>12), highly corrosive liquid, or for continuous testing in high temperature solutions (>140ËšF).

Compatible with any pH meters that use BNC connectors. Temperature sensor is not built-in. Users need to have a separate temperature probe to enable ATC or manually input temperature to complete temperature compensation.

This electrode has a 6-Month limited warranty fulfilled by Apera Instruments, LLC.



  • Apera's special lithium glass membrane ensures quick and stable pH readings.
  • 50 Ohm low impedance for swift response.
  • Gel KCL electrolyte adopted. No need for refilling.
  • Detachable sensor shield is built upon the sensitive glass membrane to protect it from accidental damage.
  • Standard BNC connector
  • Apera's special lithium glass membrane ensures quick and stable pH readings.
  • 50 Ohm low impedance for swift response.
  • Gel KCL electrolyte adopted. No need for refilling.
  • Detachable sensor shield is built upon the sensitive glass membrane to protect it from accidental damage.
  • Standard BNC connector

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