The ALTAIR 4XR is your reliable and robust multigas detector that simultaneously measures up to four gases. Equipped with quick-response MSA XCell® sensors, the ALTAIR 4XR portable multigas detector outperforms industry requirements in crucial categories. Safetyio compatible, the Altair 4XR can also provide real-time incident knowledge to any team members when linked to the MSA Altair Connect app.

Four-year sensor life is 60% longer than the industry average, and its 24-hour run time exceeds the industry average by 71%
Rugged unit offers a secure grip, high durability, and is designed to resist a drop of up to 20 ft. (6m)
Cost-effective construction saves users more than 50% on calibration gas, replacement sensor, and maintenance
Unit features 95+ DB alarms and ultra-bright LEDs. Its large buttons and high-contrast screen make operations go smoothly in low-light conditions
MotionAlert option tells others that the user is immobilized
InstantAlert features a manual alarm to alert others of a dangerous situation
Digital sensor output makes it less likely to experience RF interference
Exclusive end-of-sensor-life warning alerts the user when the unit’s sensor needs to be changed