€375.57excl. VAT
In stock
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Used Nihon Kohden AB-631G high-gain AC amplifier for EEG, ECG, EMG, plethysmography, and respiration signals.
The Nihon Kohden AB-631G High-Gain AC Amplifier is a rack-mounted plug-in bioamplifier module designed for physiological signal measurement systems. It supports amplification of EEG, ECG, EMG, plethysmogram, and respiration waveforms for biomedical research and electrophysiological measurement applications.
This used Nihon Kohden AB-631G amplifier module is supplied as the main unit only. The power supply, connection cables, probes, and other accessories are not included. The unit is sold as-is and may show external scratches or surface contamination. Because the internal circuit board forms an integrated assembly, electrostatic discharge protection and secure connector fastening are recommended during installation.
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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.
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Last updated 23 October 2026
€376 sits above most amplifiers here.