Ensure Consistently Dry Sterile Products with Fast, Non-Destructive Headspace Analysis

Lost vacuum and moisture ingress after freeze drying threaten product stability, yet many methods can't measure these headspace conditions directly. The FMS-Moisture/Pressure Headspace Analyzer measures moisture and total pressure simultaneously and non-destructively, straight through the container wall.
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LIGHTHOUSE Headspace Moisture and Pressure Analyzer
A LIGHTHOUSE scientist preparing samples for headspace analysis

Confirm vacuum retention in every lyophilized vial, without opening one

  • Detects loss of vacuum non-destructively by measuring the actual increase in headspace pressure caused by a leak
  • Deterministic, quantitative pressure measurement, read directly through the container wall
  • Suitable for ampoules, vials, and bottles
  • Works on both clear, amber, molded and tubing containers
  • Delivers results in seconds, supporting full-batch inspection instead of destructive sampling
A LIGHTHOUSE scientist taking freeze dried samples out of the lyophilizer

Replace Karl Fischer with a faster, non-destructive moisture determination

  • Measures headspace moisture non-destructively, and within seconds
  • Removes the need to sacrifice product for destructive Karl Fischer testing
  • Maps moisture across an entire freeze-dried batch in less than a day, to easily reveal wet spots on the lyo shelf
  • Supports lyo cycle optimization and freeze dryer qualification with batch-wide, location-specific data
  • Applicable to water vapor permeation and moisture-related product degradation studies

Why choose LIGHTHOUSE?

  • Rapid, non-destructive and quantitative headspace moisture and pressure measurements from the industry leader in laser-based headspace analysis
  • Patented laser absorption technology, originally developed with funding from the FDA
  • Custom change parts hold each sample in a consistent position for repeatable measurement across container types and sizes
  • Calibrated against NIST-certified moisture and pressure standards for verified accuracy
  • Compact benchtop footprint (30.5 x 30.5 x 29.2 cm) fits directly into existing lab or at-line workflows
  • Easy-to-use hardware and software require minimal operator training

The FMS-Moisture/Pressure Headspace Analyzer

The FMS-Moisture/Pressure Headspace Analyzer

FMS-Moisture/Pressure

SPECIFICATIONS

Required Headspace
3mm
Measurement Range
Total Pressure 0 to 1 atm (0 to 760 torr), Moisture Range 0 to 25 torr
Product Types
dry product and vacuum determination
Container Closure Systems
Ampoules, vials and bottles
Configuration Sizes
6.85mm to 86mm outer diameter of container closure system
Software
21 CFR Part 11 and Annex 11 compliant
Container closure system material
tubing, molded and plastics
Color Types
clear and amber

Trusted by the pharmaceutical industry

  • More than 30 years of experience in laser-based headspace analysis
  • Used by all of the top 10 global pharmaceutical companies
  • GMP certified services aligned with global regulatory expectations

Our other benchtop instruments

Analyst using a LIGHTHOUSE laser-based headspace analyser

FMS-Carbon Dioxide

The FMS-Carbon Dioxide Headspace Analyzer enables the rapid non-destructive analysis of headspace carbon dioxide in sealed parenteral containers. Applications include container closure integrity testing and automated inspection of media fill containers.

FMS-Oxygen Headspace Analyzer with NIST traceable standards from LIGHTHOUSE

FMS-Oxygen

The FMS-Oxygen Analyzer enables precise, non-invasive oxygen analysis in sealed containers — ideal for pharma QC, process validation, and container closure integrity testing (CCIT).

LIGHTHOUSE non-destructive water activity analyzer

FMS-Water Activity

Reactive moisture drives degradation, caking, and stability failures in solid dosage and lyophilized product, yet Karl Fischer titration and loss on drying destroy the very samples you need to monitor over time. The FMS-Water Activity Analyzer measures water activity non-destructively, straight through the container.

Get in touch with Jay

Do you have questions about our services or need expert advice for your project? Our dedicated team is here to help. Contact us today to learn how we can support your specific needs.

Jay Rowden

Moisture Determination Expert Manager

Contact us