CMC Instruments

http://www.cmc-instruments.de/cmc.php?language=en

Trace Moisture Analyzers for chlorine, sample systems

Hitech Instruments Division of MTL Industries/Cooper Industries (not Chlor Alkali Plants)

http://www.hitech-inst.co.uk/gas_analyser_instruments.php

Zirconium Oxide Oxygen Analyzers, Analyzers for Hydrogen, Argon, Helium, Neon, Krypton, Xenon and Sulfur Hexafluoride, NDIR analyzers for methane, carbon dioxide and carbon monoxide, intrinsic safe and wireless solutions

LDetek

http://www.ldetek.com/

On-Line Trace Nitrogen in Argon and Helium Analyzers featuring unique duty cycled plasma detector, MultiDetek gas chromatograph for trace gas impurities in Argon, Helium, Hydrogen, Nitrogen, etc, high purity gas stream selectors, noble gas purifiers, PlasmaDetek duty cycled controlled plasma emission detector system (PED) for gas chromatography"

HNU/PID Analyzers

http://www.hnu.com/

PID Analyzers/HNU featuring PID based on-line VOC monitors, portable PID's, THC analyzers, analyzers for solvents, inorganics, organics, fixed gases, ETO, BTX monitoring, IR based analyzers, gas detectors