The MSA Altair 2X Gas Detectors are the first single and 2-gas detectors that incorporate industry-leading XCell Sensor Technology to deliver unparalleled performance while drastically minimizing total cost of ownership, increasing durability and delivering enhanced worker safety, compliance and traceability. 
MSA revolutionized gas detection with XCell Sensor Technology. By miniaturizing the sensors’ controlling electronics and placing them inside the sensor itself using MSA’s proprietary application-specific integrated circuit (ASIC) design, MSA XCell Sensors offer superior stability, accuracy, and sensor life.

Low cost of ownership
Fastest sensor response times, lowest calibration gas flow rate on the market
> 4-year expected sensor life
3-year warranty on instrument & most sensors (2 years on Cl2, NH3)
Stand-alone bump tests reduce maintenance, increase productivity (ALTAIR 2XP only)
1 device can monitor 2 gases (ALTAIR 2XT only)
Increased safety awareness & real-time compliance
Stand-alone bump test anytime, anywhere without specific calibration gas (ALTAIR 2XP only)
Bump pass: green LED flash every 15s, large on-screen checkmark
Bump fail or expiration: red LED flash every 15s, no checkmark
End-of-sensor-life warning and alarm
Full-time traceability
Records 75 alarm events
150+ hours of periodic data (ALTAIR 2X and 2XP)
100+ hours of periodic data (ALTAIR 2XT)
Compatible with MSA GALAXY® GX2 Automated Test System and MSA Link Pro software
Rugged durability
Tough over-molded rubber armor
Survives multiple 25-ft drops onto concrete
Agency-certified dust- and water-tight IP67 construction
Intrinsically-safe design