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MSA™ ALTAIR™ 4X Multigas Detector

Second generation of the ALTAIR 4 Multigas Detector

$1,173.18 - $1,173.18


Alarm Types Audible, visual, vibrating
Battery Life 24 hr.
IP Rating 67
Temperature (English) Range -4° to +122°F
Temperature (Metric) Range -20° to +50°C
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Products 1
Catalog Number Mfr. No. Dimensions (L x W x H) Resolution Sensor Types Weight (English) Price Quantity  
Catalog Number Mfr. No. Dimensions (L x W x H) Resolution Sensor Types Weight (English) Price Quantity  
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7 x 3 x 4.4 in. (18 x 7.62 x 10.1cm) O2: 0.1%, LEL: 1%, CO: 1% Hydrogen Sulfide, LEL, Oxygen 23.84 oz.
Each for $1,173.18


Driven by MSA XCell™ sensor technology.

  • Personal four-gas monitor—all models detect LEL and O2; selected models detect CO or CO plus H2S
  • Extreme durability—survives 10 ft.+ drop test
  • Functionality and ease of use—both operate the same way
  • IP67 Rated—can be submerged in water
  • MotionAlert™ feature activates if unit does not detect motion for 30 seconds
  • InstantAlert™ feature allows users to manually alert others to a potentially hazardous situation
  • Galaxy™ system compatible for calibration and record keeping
  • QuickCheck™ Test Station for fast, easy bump testing available (sold separately)
  • Datalogging and MSA Link™ software ready

Improved features

  • New MSA XCell Sensors—longer life and higher performance
  • Longer runtime—24-hour continuous runtime
  • End-of-sensor-life warning—heart icon when nearing end of life
  • Improved buttons—softer, larger, easier to press
  • White backlight—improved readability
MSA XCell Sensor Technology
  • Typical sensor life: 4 years
  • Typical response time: ≤15 seconds faster response (clear time, bump test)
  • Embedded microelectronics provide greater stability and performance; each sensor has its own microprocessor and digital output
  • Leak-tight—laser-welded sensor sealing for increased durability

Order Info

For information on ratings and certifications, contact your Fisher Safety Customer Service Representative.


UL and CSA approved. Also meets various international requirements. Contact your Fisher Safety Customer Service Representative for details.


Three years



Audible, visual, vibrating
-20° to +50°C
24 hr.
-4° to +122°F
3 Years