LOW COST OF OWNERSHIP: Fastest sensor response times, lowest calibration gas flow rate, 4-year expected sensor life, 3-year warranty on instrument and most sensors FULL-TIME TRACEABILITY: Records 300+ alarm events and 850+ hours of data (including bump and calibration records), compatible with MSA GALAXY GX2 Automated Test System and MSA Link Pro software FULL-TIME TRACEABILITY: Records 300+ alarm events and 850+ hours of data (including bump and calibration records), compatible with MSA GALAXY GX2 Automated Test System and MSA Link Pro software RUGGED DURABILITY: Tough over-molded rubber armor, survives multiple 25-ft drops onto concrete, agency-certified dust- and water-tight IP67 construction, and intrinsically-safe design EASY TO USE: 1-button gloved hand operation, large LCD characters and status icons, 10 second backlight with adjustable timeout, care and use instructions included, measures CO