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The ALTAIR 4XR Gas Detector is the toughest 4-gas monitor on the market, backed by a 4-year warranty. Equipped with rapid-response MSA XCell¨ sensors, the ALTAIR 4XR provides real-time incident awareness to workers, supervisors, safety managers, and others when paired with the MSA ALTAIR Connect app via a Bluetooth wireless connection. The device monitors gases in ambient air and in the workplace. MotionAlert option tells others that user has become immobile. User-activated InstantAlert notifies others of a potentially dangerous situation. It is ideal for confined spaces, combustible detection, oxygen detection, and toxic detection. It can be used in the following markets: fire service, contractor, industrial, mining, utilities, and oil and gas.