ALTAIR® 4XR Multigas Detector, CO/H2S/LEL/O2, XCell™ Sensors, Charcoal Case, Global Charger

MSA ALTAIR® 4XR Multigas Detectors

SKU 454-10178560


  • 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
  • Confirm compliance quickly with the Bump LED and on-screen checkmark
  • Stay connected with alerts from the field for live gas readings, InstantAlert™ distress calls, MotionAlert™ man-down alarms, and non-compliance warnings
  • Survives 25 drops from 4 ft and an incidental 25-ft drop onto concrete


Temp. Range [Min]

-40° F (-40° C)

Display Type


Measuring Range [Max]

CO 0 ppm to 1999 ppm; H2S 0 ppm to 200 ppm; LEL 0% to 100%; O2 0% to 30%

Gas Type

Carbon Monoxide (CO); Hydrogen Sulfide (H2S); Lower Explosion Limit (LEL); Oxygen (O2)


Charcoal Case; Global Charger

Run Time [Max]

24 hr

Power Source

Rechargeable Li-Polymer Battery

Sensor Type


Sound Level

95 dB at 1 ft