MULTIGAS DETECTION: ALTAIR 5X Gas Detectors are equipped to measure Lower Explosive Limit, Oxygen, Hydrogen Sulfide , Sulfur Dioxide and Carbon Monoxide. They are designed for virtually no cross-channel interference, and can measure up to 6 gases simultaneously. FULL-TIME TRACEABILITY: All detectors have built-in bluetooth which gives an automated recording of alarm events and data-including bump and calibration records. The InstantAlert feature provides a manual alarm to instantly alert others to a potentially hazardous situation. SAFETY & COMPLIANCE: These detectors have high-resolution monochrome LCD screen with 18 built in languages, and are also equipped with the MotionAlert feature option, which tells others that their user has become immobile. RUGGED DURABILITY: The rubberized polycarbonate housing for ALTAIR 5X Gas Detectors provides a strong shell for the detector as it can survive multiple 10-ft drops, giving it a certified IP65 rating. Don't worry about if you drop this detector-it can handle it! COMPREHENSIVE EQUIPMENT: Not only do these detectors includes plug-and-play slots for MSA XCell Sensors, they also have the MSA GALAXY GX2 Automated Test System and MSA Link Pro and MSA Link Software compatibility.