like all MSA detectors, altair 2X is built for durability and designed for the work that is being completed.

  • Withstands extreme impacts with rugged polycarbonate housing and passes 25-foot drop test
  • ip 67-rated altair 2X is both dust tight and water tight
  • minimal rF interference
  • Full three-year warrant y supports the entire instrument, including the sensors.

Xcell Sensor response and recovery time reduces the gas consumption for calibration and gas bump tests (where applicable).

  • the altair 2Xp with Xcell pulse technology reduces the need for specific calibration gas and bump test accessories providing significant savings!
  • the altair 2Xt two-tox eliminates the need for a second instrument in several applications.


Powered by xcell technology 2x faster than industry average

Up to 4 gasses

By incorporating Bluetooth as a standard feature, MSA brings the benefits of wireless safety to everyone.

By downloading the free MSA ALTAIR Connect App from Google Play, any compatible Android device becomes an enhanced safety and productivity tool when paired with the ALTAIR 4XR Detector.

  • Get gas detection readings and man-down alerts
  • Configure instruments remotely
  • Automate gas detector records and events
  • Drive greater productivity and greater workflow efficiency
  • Achieve supervisory awareness of worker safety
  • Send gas alarms via text


Building upon decades of sensor design experience, MSA has revolutionized sensor technology with design breakthroughs that improve performance.

  • XCell exotic SO2, NO2, Cl2, and NH3 Sensors for expanded monitoring applications
  • Sensor response and clear times in less than 15 seconds for most common sensor configurations
  • Bump test in less than 15 seconds for most common sensor configurations
  • Span calibration time of 60 seconds for most common sensor configurations
  • Greater signal stability and repeatability under changing or extreme environmental conditions
  • All XCell Sensors are capable of plug-and-play installation for easy reconfiguration, with reliable, extended-life XCell Sensors, there’s no need to replace sensors after two years.
  • Typical life greater than four years for combustible, O2, CO/H2S, NO2, and SO2 sensors
  • Typical life greater than three years for NH3 and Cl2 sensors
  • Combustible sensor proprietary operating mode helps maintain poison-resistance throughout sensor life
  • End-of-sensor-life warning gives advanced notice to user, reducing service outages Three-year back-to-back instrument warranty includes CO/H2S/O2/LEL/SO2, NO2 XCell and IR sensors Two-year warranty on NH3 and Cl2; minimum 12-month warranty on other sensors