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Extrel CMS MAX300-LG Quadrupole Mass Spectrometer for Continuous Gas Analysis

UsedExtrel CMSGas analysersUnited States

Price on request

In stock

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Stock
In Stock
Product Code
69350
All 4 specifications
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Specifications 4

Brands
Extrel CMS
New/Used
Used
Stock
In Stock
Product Code
69350

Pre-Owned

Product description

Benchtop quadrupole mass spectrometer for real-time multicomponent gas monitoring and trace gas analysis.

The Extrel CMS MAX300-LG is a laboratory-grade quadrupole mass spectrometer designed for continuous, quantitative gas composition measurement. This benchtop process mass spectrometer supports real-time monitoring of multiple gas components in a single analysis cycle and is suitable for catalysis research, bioreactor gas analysis, fermentation monitoring, pilot plant development, and reactor off-gas analysis.

Listed configuration specifications

  • Detection range: 100% to 5 ppm with a Faraday detector
  • Detection range: 100% to 5 ppb with an electron multiplier
  • Mass range options: 1–250, 300, or 500 amu
  • Analysis rate: 0.005 to 16 seconds per component
  • Quadrupole filter: 19 mm high-transmission design
  • Precision: <0.05% RSD over 24 hours
  • Stability: <0.5% RSD over 30 days
  • Filaments: dual filaments with automatic switchover
  • Detector control: automated detector switching within a scan
  • Ionization: adjustable ionization energy control
  • Sample capacity: up to 61+ selectable sample streams

The MAX300-LG incorporates a stainless steel vacuum chamber, integrated pressure gauge assembly, multi-port sample inlet manifold, accessible analyzer components, and rugged industrial-grade construction. Its fast measurement updates and stable quadrupole design support long-term gas monitoring in biotechnology, bioprocessing, fermentation, environmental analysis, and chemical reaction studies.

Included

  • Extrel CMS MAX300-LG Mass Spectrometer
  • Standard power cord

Condition and configuration

  • Good cosmetic condition
  • Untested by the seller; reported to have come from a working laboratory
  • The listed configuration is based on the manufacturer’s default configuration and could not be confirmed without software
  • A manufacturer visit is required to configure the instrument
  • Sold as-is without warranty, returns, or refunds due to the lack of software and inability to fully test the system

Typical required consumables

  • Dual-filament ion source filament assembly
  • Calibration gas standards
  • Inlet capillaries
  • Particle or inline filters
  • Ferrules and fittings

Why Questpair exists

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.

Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 19 October 2026