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Portable waterproof pH meter AS-pH-22 with 0–14 pH range, 0.01 resolution, automatic temperature compensation, ideal for bioprocessing and molecular diagnostics.
The AS ONE AS-pH-22 LAQUA Twin pH Meter II is a portable, waterproof pH measuring instrument designed for precise and reliable pH analysis in research and industrial biotechnology settings. Featuring a measuring range from 0 to 14 pH with 0.01 pH resolution and ±0.01 accuracy, it employs the glass electrode method for electrochemical measurement. The device supports automatic temperature compensation essential for accurate pH readings in varying thermal conditions, a critical factor for *bioprocessing* and *molecular diagnostics*.
Key technical features include:
This meter is widely used in biotechnology research, clinical diagnostics, and biomanufacturing quality control, providing essential pH data for applications such as gene editing workflows, cell culture media monitoring, and synthetic biology experiments. Sold as a used unit, performance may vary from new equipment standards, and it is provided as-is.
Ideal for scientists and lab technicians requiring a durable, precise, and easy-to-use pH meter for laboratory and field use in cell imaging, fluorescence analysis, and molecular cloning environments.
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
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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.
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 4 November 2026
