MULTIGAS DETECTION: Equipped to measure Lower Explosive Limit (LEL), Oxygen (O2), Hydrogen Sulfide (H2S) and Carbon Monoxide (CO), designed for virtually no cross-channel interference FULL-TIME TRACEABILITY: Bluetooth automated recording of alarm events and data (including bump and calibration records), rechargeable Li-polymer battery with 20-hour run-time SAFETY & COMPLIANCE: High-resolution monochrome LCD with 18 built in languages, equipped with MotionAlert (man-down alarm) Feature, InstantAlert (manual alarm) Feature, and end-of-sensor-life warning RUGGED DURABILITY: Rubberized polycarbonate housing, integral pump to provide consistent gas flow, survives multiple 10-ft drops, certified IP65 rating COMPREHENSIVE EQUIPMENT: Includes plug-and-play slots for MSA XCell Sensors, performance guarantee, warranty, MSA GALAXY GX2 Automated Test System and MSA Link Pro and MSA Link Software compatibility