CMS-4 CO Monitor Package
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4.00 LBS
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Clemco Part #29765

The CMS-4 is a field, in-helmet CO monitor/alarm for air respirators air supply and can be moved from helmet to helmet. Connector and test gas are included with this monitor.

This monitor detects the presence of CO inside supplied-air respirators. If CO exceeds 10 ppm, the US limit set to meet Grade D quality breathing air requirements*, it triggers a warning light and a high-decibel audible alarm. The CMS-4 Monitor mounts to the inside of the respirator via a 3" lexan strip with velcro on it. The 3 inch strip slides between the inner lens and gasket on the inside of the respirator.

Calibration videos for the CMS-4 can be found under the "Videos" tab above.

This monitor is for blasting and painting contractors in field operations. NIOSH has approved the use of the CMS-4 with Clemco respirator models Apollo 20, 60, and 600.

The CMS-4 offers a full range of features, including:

  • Digital liquid crystal display (LCD)
  • Visual, audible, and vibrating alarms
  • Low battery alarm
  • Sensor fail alarm
  • Current time display
  • Over 3,000 hours of operation from 1 battery
  • CSA classified for Class I, Division I, Groups A, B, C, and D hazardous atmospheres

*Users outside the USA should determine their local requirements and set the alarm threshold to their maxim.