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Still Using Reusable pH Sensors in Single-Use Applications?

Hamilton OneFerm sensors are the next step in the evolution of single-use measurement. Their design solves some of the issues that commonly occur with reusable pH sensors that are inserted into the bag.

Specifically, Hamilton's single-use sensors combine the reliability and measurement stability of our long-term proven conventional sensors with the ease of use as an integral part of the bioreactor. The sensors retain the high accuracy performance even after gamma irradiation and a sufficient shelf life making it the ideal single-use solution.

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OneFerm - Traditional

OneFerm pH sensors are offer multiple electrical connector options and sensor lengths to work with most single use bags and bioreactor installations.

OneFerm - Arc

OneFerm Arc Compatible pH Sensors fully integrate with Arc Intelligent sensor technology for data-rich sensor information in single use applications.

Learn More About Our Single-Use Sensors

Trusted Design

Optical vs. Glass: Which is the Best Technology for Single-Use pH?

The glass pH electrode is widely considered the most robust and reliable device available for pH measurement. Yet, traditional glass sensors are not designed for a single-use environment because they require laborious handling and increased risk of contamination.

While optical technology exists for single-use pH measurement, that technology has not delivered the reliable accuracy that bio-process engineers depend on.

By contrast, Hamilton's single-use OneFerm pH sensors feature the high-accuracy and performance of a traditional glass pH electrode, even after gamma irradiation and dry storage.

Anatomy of OneFerm pH

CriteriaDescription

Shaft length options

70 mm, 120 mm, 225 mm, 325 mm, 425 mm

Electrical Connector

K8, VP6 (traditional) / VP8 (Arc)

Temperature Sensor

PT100, PT1000 (traditional) / NTC 22 kOhm (Arc)

pH measuring range

3–10

Drift

< 0.1 pH / week

Wetted Parts

Glass / VMQ (Silicone elastomer)

How Do I Purchase OneFerm Sensors?

Hamilton single-use sensors are currently only available to integrators such as bag, bioreactor, and downstream skid manufacturers.

  • Bioreactor, bag, and downstream skid manufacturers are encouraged to contact Hamilton to discuss integration opportunities.
  • End-users at biopharmaceutical companies are encouraged to ask their single-use solution provider if Hamilton sensors are available for their installation.

Explore Hamilton's Entire Single-Use Portfolio

Designed Specifically to Meet Your Single-Use Requirements

Our single-use sensors combine the reliability and measurement stability of our long-term proven conventional sensors with the ease of use as an integral part of the bioreactor. The sensors retain the high accuracy performance even after gamma irradiation and a sufficient shelf life making it the ideal single-use solution.

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Resources

Hamilton's knowledge base provides a range of explanatory articles, frequently asked questions, and document downloads.
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