Exclusive MotionAlert™ and InstantAlert™ features make the ALTAIR 5X Multigas Detector ideal for applications such as confined space monitoring. MotionAlert feature activates when a user becomes disabled and motionless, quickly alerting others as to the disabled user’s location. And with a simple push of a button, InstantAlert feature enables users to manually warn others of potentially hazardous situations. The ALTAIR 5X Detector is the long-life leader. To prove it, the instrument comes with a full three-year warranty,* an entire year longer than the industry average, so that you can depend upon the ALTAIR 5X Detector to withstand the punishment that other portable gas detectors can’t.