MSA introduces a new addition to the Altair family of portable instruments. The new Altair 4X multigas detector driven by MSA XCell sensor technology offers a standard three-year warranty, four-year sensor life, faster response time, increased stability and less than 60-second span calibration time. The Altair 4X multigas detector operates with only MSA XCell sensors for combustible gas, O2, H2S and CO. The Altair 4X multigas detector is compatible with the Altair 4 Galaxy Test Stand and provides standard MotionAlert and InstantAlert features.