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Sensorex pH3400 Research Grade Glass pH Electrode

Sensorex pH3400 Research Grade Glass pH Electrode

In laboratory environments such as medical, biological, and materials science research groups, samples and test conditions are constantly changing, but accuracy is always critical. The pH3400 is a highly versatile glass combination pH electrode, specially designed to respond quickly and accurately to rapid temperature changes. The high sensitivity internals allow testing of low ionic samples. Safely measure samples containing heavy metals, TRIS buffer, or proteins thanks to the double junction reference design, which prevents fouling. Even test highly reactive chemicals: with a glass body, the pH3400 is inert to a wide range of chemical reactions.

  • Our most sensitive laboratory electrode: accurate to 0.04 pH in tests across full recommended temperature range

  • Easily maximize measurement repeatability: Rapid renew reference system for quick refilling

  • Safe for use with reactive chemicals: Glass bodies are inert to many chemical reactions

  • Ideal for difficult sample types: Double junction reference protection for testing samples containing heavy metals, TRIS buffer, and other contaminants

  • Ready for wet or corrosive environments: BNC boot protects meter connection

Recommended for: Low ionic samples, medical and pharmaceutical research, biological samples (including TRIS buffer), samples containing heavy metals


  • Measurement Range: 0-14 pH (low NA+ ion error)

  • Response Time: 95% in 1 second

  • Isopotential: 7.00 pH

  • Offset: 0.2%

  • Span: > 97%

  • Cable Length: Standard: 3 ft (1 m); Custom: Please inquire

  • Connector: BNC

  • Diameter: 12mm

  • Length: 150mm

  • Reference: Refillable

  • Junction Number: Double (2)

  • Junction Material: Ground Glass and pHASE

  • Reference Solution: 3.5 M KCl/KNO3

  • Glass Shape: Bulb

  • Body Material: Glass

  • Temperature Range: 0-100° C

  • Strain Relief: Yes

  • BNC Boot: Yes

Specification Sheet for Glass Laboratory pH Electrodes

More Glass Body pH Sensors

pH1400 | pH2400 & pH2500 | pH3400



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