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Industrial pH and ORP sensor with PT1000 RTD for precise temperature-compensated measurements in harsh process environments.
The Mettler Toledo InPro 3253/225/PT1000 is a precision industrial sensor designed for accurate measurement of pH, ORP (oxidation-reduction potential), and temperature in aggressive liquids. This sensor integrates a PT1000 resistance temperature detector (RTD), enabling precise temperature compensation essential for reliable pH and ORP monitoring in bioprocessing, chemical manufacturing, water treatment, and pharmaceutical production workflows.
Key features include:
This sensor is widely adopted in industrial bioprocessing environments requiring stringent pH and ORP control, making it critical for applications such as gene editing media development, synthetic biology research bioreactors, and molecular cloning workflows. Its precise temperature measurement via the PT1000 RTD enhances fluorescence analysis and live-cell imaging protocols where pH stability is paramount.
In conclusion, the InPro 3253/225/PT1000 sensor delivers reliable, temperature-compensated pH and ORP measurements critical in advanced biotechnology and industrial process automation systems.
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With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 22 October 2026
The middle half of the 319 with a price runs from €134 to €620.
