Thermo Scientific™

Orion™ 8103BNUWP ROSS Ultra™ pH Electrode

Obtain precise pH determinations in micro volume samples with the Thermo Scientific™ Orion™ 8103BNUWP ROSS Ultra™ pH Electrode, a general purpose, semi-micro tipped combination electrode with a top-performance glass body. The pH response is independent of temperature changes and can be used on any pH meter with a BNC connection.

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  • Superior measurement stability, faster response, greater accuracy, longer life, least long-term drift and more reproducible results
  • Featured with WP- waterproof BNC connectors


  • 60ml bottle of Orion ROSS electrode fill solution 810007


  • pH buffers for calibration
  • Beakers, plastic or glass
  • Magnetic stirrer or Orion stirrer probe
  • Distilled or deionized water

Compatible with:

Waterproof BNC connector is compatible with any standard BNC connector both on Thermo Scientific™ Orion Star™ Series meters and competitive meter models.

Recommended for:

  • Clinical, pharmaceutical, and food labs, wherever sample size is a constraint
Limited warranty period: Subject to all warranty requirements and exclusions set out in our Terms and Conditions of Sale, this product is warranted from the date we ship the product and for ninety (90) days thereafter. Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.


Manuals & protocols