The ARGWELD^® 'Purge Monitor' has several features:

• Keeps waiting time to a minimum
  The monitor can tell the operator exactly when the oxygen level is low enough to commence welding. No estimating or guesswork is involved, so no time is wasted waiting for the correct level to be reached.
• Saves on excessive use of inert gas
  The exact oxygen content is given, so no more inert gas than necessary has to be used to ensure that the weld will be free of oxidation.
• Prevents weld failures
  Premature starts on welds are avoided, high quality is ensured.
• Highly portable
  Its small size makes is easy and very convenient to use in all purging situations.
• Low cost
  The monitor is available at low relative cost and is a perfect accessory for use with any pipe purging system or argon welding enclosure.
• Continuous monitoring of oxygen levels
  A continuous read out of the oxygen level is given, even when welding is taking place. This can avoid unforeseen purge problems that could cause quality failures after the weld has been started.
• Safety
  The purge monitor may also be used to check confined spaces for safe oxygen levels before personnel enter the area and while they are working.

Other Purge Monitors available from COB Industries, Inc. include:

• The ARGWELD^® 'PPM - Parts Per Million Monitor'.
• The ARGWELD^® 'Purge Alarm', a monitor measuring from 20.9% oxygen down to 0.01% (100ppm), a little more expensive than the ARGWELD^® 'MKIII Purge Monitor' but as well as the expanded range, this model has switch able alarm set points for high and low levels to activate a warning light, buzzer, klaxon, ventilator, valve and so on.
• The ARGWELD^® 'MKIII HR', high resolution version of the 'MKIII', with the range of the 'Purge Alarm', but no alarm/set point features.