MSA ALTAIR® 4X Multigas Detector

Product Profile

The portable Altair 4X Detector is powered by the new MSA XCell™Sensor technology with cost savings of over 50% on calibration gas, replacement sensors, and maintenance. It also has the distinguishing feature of typical decrease in downtime of over 50% while bump testing the instrument, waiting for a gas response, and waiting for the instrument to clear.

It provides enhanced degree of safety with industry-leading accuracy, repeatability, and response times in addition to a 4-year expected sensor life and standard 3-year instrument warranty. It also gives an industry-exclusive end-of-sensor-life warning.

Ideal for confined space applications, it is not only durable but also water, dust, and impact resistant in nature. Altair 4X Detector performs the best in a tough industrial environment running for over 24 hours on a single charge.

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Technical Specification

Make MSA
Manufacturer MSA Safety Incorporated
Model code ALTAIR® 4X Multigas Detector
Type Gas
Additional info


  • Faster response time
  • Increased stability 
  • Less than 60-second span calibration time 
  • XCell Sensors for combustible gas, O2, H2S and CO
  • Compatible with the ALTAIR 4 Galaxy®Test Stand
  • Provides exclusive optional MotionAlert™ and Instant Alert™
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