MSA 10107602 Altair® 4X Multigas Detector simultaneously measures up to four gases from a wide range of XCell(R) sensor options including combustible gases, O2, CO, H2S, SO2 and NO2. 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%. 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. 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. Extremely durable, rugged unit is designed to withstand a drop of up to 20 feet, and uses less than half as much calibration gas as the industry average.