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MSA Altair 4XR Multi Gas Detector

Outfitted with rapid-response MSA XCell® sensors, the ALTAIR 4XR Gas Detector is the toughest 4-gas monitor on the market and is backed by a 4-year warranty. 


ALTAIR 4XR Gas Detector

Multi gas detector is a detection device capable of measuring several types or different types of gases. The MSA multi gas detector is the most sought after product, because of its ability to really answer the needs of HSE or K3 workers in the field. One of MSA's flagship gas detector products is the MSA Altair 4XR.

Before starting work, workers are required to check and inspect the work area with a gas detector to know the risk of air contamination. With the sophistication of the MSA Altair 4XR, the potential for contamination with toxic gases will be even smaller. The more sophisticated the detection device, the less likely it is to have a work accident due to inhaling the toxic gas.

Features of the MSA Altair 4XR Multi gas detector:


  • Sense gas 2 times faster than the industry average with our XCell sensors
  • Quickly update MSA ALTAIR 4XR settings via the ALTAIR Connect app (available on the Google Play Store)
  • Send event notifications via text message with the ALTAIR Connect app


  • Survives 25 drops from 4 feet (1.2 meters) (MIL-STD-810G 516.6 Transit Drop 3rd Party Certified)
  • Can survive an incidental 25-foot (7.5-m) drop onto concrete
  • Dust- and waterproof IP68 rating (2 meters for at least 1 hour)
  • Operating temperature range: -40°F to +140°F (-40°C to +60°C)


  • 4-year instrument & sensor warranty
  • Confirm compliance quickly with the Bump LED & on-screen checkmark
  • Bump and calibrate with 1/2 the test gas and in 1/2 the time vs. industry average
  • Bump and calibrate at a specified "Time of Day" with your MSA GALAXY® GX2 Automated Test System
  • MotionAlert option tells others that user has become immobile
  • User-activated InstantAlert notifies others of a potentially dangerous situation
Sensor HHC 0-100% LEL
Oxygen sensor 0-30%
Toxic sensor 0-1999 PPM CO, 0-200 PPM H2S
Market Fire Service, Construction, General Industry, Mining, Oil & Gas, Utilities
Applications Confined Space
Brand MSA

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