The ALTAIR 4X is an extremely durable Multigas Detector that simultaneously measures up to four gases from a wide range of XCell(R) sensor options including combustible gases, O₂, CO, H₂S, SO₂ and NO₂. The ALTAIR ...

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The ALTAIR 4X is an extremely durable Multigas Detector that simultaneously measures up to four gases from a wide range of XCell(R) sensor options including combustible gases, O₂, CO, H₂S, SO₂ and NO₂. The ALTAIR 4X Detector surpasses industry standards in several crucial areas. Its four-year sensor life is 60% longer than the industry average, while its 24-hour run time exceeds the industry average by 71%. This versatile portable detector is a perfect match for industries ranging from fire fighting to welding, and its digital sensor output makes it less likely to suffer from RF interference. The unit features exclusive MotionAlert, which lets others know if the user has become immobile, and InstantAlert, a manual alarm that alerts others of potentially dangerous situations. This rugged unit is designed to withstand a drop of up to 20 ft (6m) and uses less than half as much calibration gas as the industry average.



  • Dependable multigas detector tests for LEL, oxygen, carbon monoxide, hydrogen sulfide, sulfur dioxide and nitrogen dioxide
  • Four-year sensor life means detector lasts 60% longer than the industry average
  • Large buttons and high-contrast screen make operation easy in low-light conditions
  • Ribbed rubber housing provides secure grip and high durability
  • Exclusive end-of-sensor warning cautions user when unit's sensor needs to be changed
  • Dependable multigas detector tests for LEL, oxygen, carbon monoxide, hydrogen sulfide, sulfur dioxide and nitrogen dioxide
  • Four-year sensor life means detector lasts 60% longer than the industry average
  • Large buttons and high-contrast screen make operation easy in low-light conditions
  • Ribbed rubber housing provides secure grip and high durability
  • Exclusive end-of-sensor warning cautions user when unit's sensor needs to be changed

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