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4-channel fiber optic pH sensor transmitter for precise bioprocess and laboratory pH measurement.
The PreSens pH-4 Mini v2 is a compact, 4-channel fiber optic pH sensor transmitter designed for precise and simultaneous pH monitoring in bioprocessing, biotechnology, and advanced laboratory applications. Essential for molecular diagnostics, synthetic biology experiments, and biomanufacturing workflows, this instrument supports accurate pH measurement critical in cell culture monitoring and bioprocess control.
Key technical features include:
This fiber optic pH transmitter is favored for its non-electrochemical sensor technology that minimizes drift and contamination, making it ideal for bioprocess monitoring and live-cell imaging workflows. It offers reliable, multi-channel pH measurement, which is critical for reproducibility in gene editing and biopharmaceutical production pipelines. The unit is tested, in good working condition, and ready for deployment in research laboratories globally.
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.
We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Yes. Every verified supplier states which service partners cover the instrument, and we list that 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 19 October 2026
The middle half of the 448 with a price runs from €268 to €4,441.
