MSA 4XR (LEL, 02, CO, H2S-LC)

The MSA ALTAIR 4XR is compatible with a wide range of XCell sensor options including combustible gases, O2, CO, H2S, SO2 and NO2. Xcell sensors surpass industry standards in several cucial areas. Thie four-year sensor life is double the industry average, and they are engineered using MSA’s proprietary application-specific integrated circuit ( ASIC ) design. By miniaturizing sensor controlling electronics and placing them inside the sensoritself, MSA XCell Sensors offer superior stability, accuracy and repeatability.

MSA XCell Sensors are a breakthrough in chemical and mechanical sensor design, enabling faster response and span calibration times. With less time spent on calibration and bump tests, you save calibration gas, maintenance costs and in turn, save money. But most importantly, in your industry, saving seconds on response time can also mean saving lives.

Exclusive safety features like MotionAlert and InstantAlert make the ALTAIR 4XR Multigas Detector ideal for applications like confined space entry. The MotionAlert sensor activates when a user becomes disabled and motionless, quickly alerting others to the disabled user’s location. And with a simple push of a button, The InstantAlert feature enables users to manually alert others to potentially hazardous situations


  • Live gas readings
  • InstantAlert distress calls.
  • MotionAlert man-down alarm
  • Sensor option include: LEL, 02, H2S, CO, SO2, NO2
  • Non-compliance warnings
  • 25ft drop tested
  • IP68 waterproof to 6ft for 1hr
  • 4 year warranty
  • Temp range: -40 to 1400F ( -40 to 600C )
  • Kit options available

What’s In The Box

  • (1) Quick-start card
  • (1) Charger
  • (1) Calibration cap and tubing
  • CD manual

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