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MSA™ ALTAIR™ Single-Gas Detector

Factory-calibrated detector offers two-year, maintenance-free service life

$272.72 - $273.59


Alarm Types Audible, visual, vibrating
Dimensions (L x W x H) 3.4 x 2 x 1 in. (8.63 x 5.08 x 2.54cm)
Weight (English) 4 oz.
Weight (Metric) 113g
Humidity Range 10 to 95%
View More Specs

Includes: Rugged suspension clip

Products 2
Catalog Number Mfr. No. Sensor Types Measurement Range Resolution Price Quantity  
Catalog Number Mfr. No. Sensor Types Measurement Range Resolution Price Quantity  
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Hydrogen Sulfide 0 to 100 1
Each for $272.72
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Oxygen 0 to 25% 0.1%
Each for $273.59


Unit will not deactivate after two years of operation, but will continue to operate as long as battery capacity and sensor performance allow.

  • Easy-to-use instrument features one-button operation with no required sensor or battery changes
  • Extremely small and thin sensor profile allows unit to deliver high performance in a small package
  • Large numeric display allows user to view service life countdown, alarm conditions, setpoints, peak readings, and hours in alarm since activation
  • Triple alarm system consists of piercing 95dB audible alarm, dual super-bright LED alarm lights, and a pulse-emitting vibrating alarm
  • Bump check is confirmed with checkmark on instrument LCD; displays for 24 hours
  • Event recorder stores information about 25 latest events automatically
  • Extra-thick rubberized housing resists impact and water/dust ingress
  • Built-in IR communications capability allows user to download and analyze readings as well as adjust alarm setpoints
  • Functions in a temperature range of -4° to +122°F (-20° to +50°C); relative humidity, 10 to 95%

Order Info

Dimensions (L x W x H): 1 x 2 x 3.4 in. (2.5 x 5.1 x 8.6cm). Weight: 4 oz. (113g) including clip.


Rugged housing is IP67 rated for ingress protection. Classified as Intrinsically Safe for use in Class I, Division 1, Groups A, B, C, and D hazardous locations in the U.S. and Canada; ATEX, II 2 G EEx ia IIC T4.


Two years or 1080 alarm minutes (18 hours) under normal conditions.



Audible, visual, vibrating
4 oz.
10 to 95%
-4° to +122°F
2 Years
3.4 x 2 x 1 in. (8.63 x 5.08 x 2.54cm)
-20° to +50°C