MSA Altair® 10110488 Multi-Gas Detector, LEL, O2, CO, H2S, Charcoal Gas, 0 to 30% Oxygen, 0 to 1999 ppm Carbon Monoxide, 0 to 200 ppm Hydrogen Sulfide, 0 to 100% LEL Detection, Audible/Vibration/Visual Alarm, Li-Ion Polymer Battery, Rubber Housing

The ALTAIR® 4X is an extremely durable multi-gas detector that simultaneously measures up to four gases from a wide range of XCell® 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.