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Confined Space and 4-Gas Monitors

MAXIM carries a full line of rugged, lightweight confined space, and 4-gas monitors.   Our instruments simultaneously monitor and display combustibles (LEL), oxygen (O2), carbon monoxide (CO), and hydrogen sulfide (H2S).  Clients have the ability to further customize instruments with optional user-defined alarm conditions, alarm types (visual and/or audible alarms), and data-logging capabilities. 

Each instrumentation rental includes a Calibration Certificate and we are more than happy to provide product training and full technical support.


  • Personal gas monitoring
  • Confined-space entry
  • Personal protection equipment


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