From€150excl. VAT
In stock
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Testo 635 temperature and humidity meter with probe for dew point measurement, compressed air checks and environmental monitoring.
The Testo 635 temperature and humidity measuring instrument measures temperature, air humidity and dew point, including in compressed air. It is also used for environmental monitoring in biotechnology and life sciences laboratories.
The unit includes the probe shown with the equipment. Additional probes are optional. The instrument accepts two plug-in probes and three radio probes.
The instrument is used and has a cracked screen. The crack does not affect performance.
The Testo 635 is a temperature and humidity measuring instrument for measuring:
The instrument calculates dew point and dew point distance. It displays minimum, maximum and mean values. Two plug-in probes and three radio probes can be attached. Optional probes support measurements of air humidity, temperature, absolute pressure and dew point in compressed air.
The unit is used and includes the probe shown with the equipment. The screen has a crack that does not affect performance.
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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
€150 sits in the middle range temperature monitoring here. The middle half of the 143 with a price runs from €50 to €880.
