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Loop-powered 4-20 mA gas transmitter for toxic gas detection with non-intrusive calibration and intrinsic safety features.
The Bacharach 4600MB Gas Transmitter is a universal, loop-powered, microprocessor-controlled 4-20 mA device compatible with Series 4600 toxic gas smart sensors (excluding Model 88 combustible sensor). Key technical features include:
This transmitter supports safe, reliable, and continuous toxic gas detection in potentially explosive atmospheres.
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 131 with a price runs from €134 to €1,991.
