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Waterproof portable oximeter, accurate dissolved oxygen measurements with automatic pressure compensation.
The WTW OXI 3205 is a highly reliable portable oximeter paired with the Cellox 325 probe, specifically designed for precise dissolved oxygen measurements in various environmental conditions. Its robust and waterproof design, rated at IP 67, makes it suitable for field and laboratory use. Equipped with a backlit graphic LCD, it ensures clear display readability. It operates with 4 x 1.5 V AA or 4 x 1.2 V NiMH rechargeable batteries, allowing flexibility in power options. Automatic compensation and correction of atmospheric pressure from 500 to 1100 mbar ensures accurate readings. The instrument offers a dissolved oxygen measuring range of 0.00 to 90 mg/L with an accuracy of ±0.5% and a resolution of 0.01, 0.1mg/L. Additionally, it is capable of precise temperature measurements with a precision of ±0.1°C and is operational in temperatures ranging from -5 to 50°C. Weighing only 2KG, it is an excellent choice for professionals in need of dependable, field-ready equipment.
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 5 November 2026
The middle half of the 240 with a price runs from €628 to €7,165.
1 other listing of this model is available.
