Gas detector MSA Altair 4XR

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.
The ALTAIR 4XR can also provide real-time incident 
awareness to team members, supervisors, safety managers
and others when paired with the MSA ALTAIR Connect
app via a Bluetooth® wireless connection.


  • 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)



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